Armyworms Invade Rice

Luis Espino: Armyworms Invade Rice

By Charmayne Hefley, Associate Editor

Armyworm Larvae

Larva of the armyworm, Mythimna unipuncta.
Photo by Jack Kelly Clark, UC IPM.

Farmers face many threats to their crops on a daily basis. Luis Espino, rice farm advisor UC ANR Cooperative Extension, Colusa County, said rice farmers are on the lookout for two caterpillar infestations during the year when armyworms invade rice fields. “The first one occurs sometime in June,” Espino said. “At that time all they do is just eat the foliage, and you can usually see it when you walk into a field. Nevertheless, the rice has a very good capacity to recover from that type of injury.” Espino’s UC Rice Blog explains it is difficult to accurately estimate yield losses due to early armyworm damage because it can reduce tillering, delay the crop, and cause uneven maturity.

“Heading” occurs when the rice plant prepares to enter its reproductive phase. The first sign, called the ‘booting’ stage, is when the leaf stem that conceals the developing panicle bulges. Then the tip of the developing panicle emerges from the stem and continues to grow. Rice is said to be at the ‘heading’ stage when the panicle is fully visible. Flowering begins a day after heading has completed. As the flowers open they shed their pollen on each other so that pollination can occur. Flowering can continue for about 7 days.  (Source: Rice Development, Ricepedia.) 

“The second infestation usually occurs in mid- to late-August when the rice is heading out,” Espino said. “At that time, armyworms can feed on the panicles, [causing the kernels to dry before filling], resulting in blanks [without kernels to harvest] on the panicles and broken panicle branches. That’s when armyworms are more important.”

Espino said that the first infestation this year was relatively large, making it harder for the treatments to control the armyworms as they devastated the rice fields. “There were some areas in fields where the rice was down to the waters,” Espino said. “so all the foliage was consumed, and sometimes only a little stem was left standing.”

During the second armyworm infestation, however, Espino said the rice fields were not as badly affected as they had been in the first attack. “We did see some fields with armyworm injury,” Espino said,“ and some farmers had to treat their fields. The numbers were just so big that the treatments were not controlling them.”

 

Resources:  

2016-05-31T19:27:09-07:00September 30th, 2015|

Lygus Bug Control in Strawberries

Lygus Bug Control in Strawberries Can Prevent Significant Damage

By Patrick Cavanaugh, Deputy Editor

Adult Lygus Bug, Jack Kelly Clark, UC IPM

Adult lygus bug, Lygus hesperus.
(Photo by Jack Kelly Clark, UC IPM)

In the coastal areas of California where the majority of strawberries are grown, the top pest pressure comes from the lygus bug. Hillary Thomas, senior production research manager with Watsonville-based California Strawberry Commission, works on lygus bug control in strawberries, as it causes significant damage to the crop each season.

“We conservatively attribute between $150 and $250 million in damage each year to the lygus bug alone,” Thomas said. “We have only a few tools to handle this pest, including insecticide and vacuums, that can be used for the strawberry industry.”

Thomas explained vacuum use is widespread by both conventional and organic growers despite its drawbacks, beginning with the huge investment required by the grower. The vacuum is generally tractor-mounted with three or four vacuum fume hoods to one hydraulic system, and the entire vacuum system runs off the tractor’s PTO (power takeoff). The vacuum is so difficult to remove, it is typically installed on the tractor for the entire season.

Therefore, current research aims to make the vaccuum more useful, according to Thomas, by focusing on technological innovations to improve vacuum efficiency. She explained, “We are literally trying to suck up as many bugs as possible by moving the largest cubic volume of air and killing all the insects that move through the vacuum. We have created some standard operating procedures for vacuums as well as recommended short-term modifications to improve their efficiency by 25 percent. The Commission has also developed a series of trainings to disseminate information on the best management practices vacuums for growers.

2016-05-31T19:27:09-07:00September 28th, 2015|

Table Grape Nutrition

Kathleen Nave on Table Grape Nutrition

By Charmayne Hefley, Associate Editor

Table Grape AdAs consumers have demonstrated a consistent desire to eat more healthfully, food marketing campaigns are increasingly focused on the nutritional benefits of their products. Kathleen Nave, president of the California Table Grape Commission, said the Commission has launched a global campaign to remind consumers about the versatility of grapes, table grape nutrition and why we love them.Table Grape Commission Logo_Page_1

“The campaign we are fielding in the U.S. is the same campaign we are running in 25 markets around the world,” Nave said. “And if you watch the campaign on the television, you will see it portrays the familiar beauty, simplicity, versatility and healthfulness of eating grapes. Everything we do is designed to remind consumers around the world why they love grapes and how easily grapes fit in a healthy diet.”

“Grapes have significant antioxidants and nutrients,” she continued. “And most importantly, families love them. It’s easy to serve grapes either as a snack or as an addition to favorite dishes like salads, pizza, sauces and yogurt. There are lots of ways you can have grapes in addition to eating them fresh out of hand,” Nave said.

 

2016-05-31T19:27:09-07:00September 25th, 2015|

Plants Do Not USE Water…They Borrow it!

Plants Transpire Most of the Water They Use!

Editor’s note: California Ag Today interviewed Allan Fulton, an Irrigation and Water Resources Advisor, UC Cooperative Extension Tehama County, in Redbluff CA, to comment on the debate about the agricultural industry’s use of water and to focus on a critical but disregarded process—that all plants transpire, even plants cultivated for the crops we eat.

Allan Fulton, Irrigation and Water Resources Advisor

Allan Fulton, Irrigation and Water Resources Advisor

CalAgToday: We hear in the media that our crops are using too much water. And while all plants need water to grow food, we also know that a high percentage of water taken up by all plants actually transpires back into the atmosphere, to form clouds and precipitation, right?

Fulton: Yes, when plants transpire, the water just returns to the local hydrologic cycle, leaving the harvested crop that we distribute elsewhere in the US or in the world actually very low in water content.

CalAgToday: When we think about transpiration, are the plants actually “borrowing” the water?

Fulton: Yes. We get a lot of questions about why we irrigate our crops so much, and it comes from the general public not being as close to farming everyday. The truth is, plant transpiration is a necessary biological process. The water cools the tree so it stays healthy and exits the leaves through special cells called stomata. While the stomates are open to allow water to transpire, carbon dioxide enters and is used in photosynthesis, making sugars and carbohydrates for the plant to create the fruits and nuts that we eat. So, an inadequately watered plant cannot take in enough carbon dioxide during transpiration, resulting in defective fruits and nuts that are smaller, shriveled, cracked—all the things the typical consumer does not want to buy.

Plants cannot gain carbon dioxide without simultaneously losing water vapor.[1]

CalAgToday: Can we say 95 or 99% of the water that is taken up by the plant gets transpired and definitely not wasted?

Fulton: Definitely. We converted to pressurized irrigation systems, micro sprinklers and mini sprinklers, so we have a lot more control over how much water we apply at any one time. We do not put water out in acre-feet or depths of 4-6 inches at a time anymore. So, much like when rainfall occurs, we can measure it in tenths, or 1 or 2 inches at most. As a result, the water doesn’t penetrate the soil very deeply, maybe only 1 or 2 feet each irrigation.

We are very efficient with the water, but because we deliver it in small doses, we have to irrigate very frequently. That is why we see irrigation systems running a lot, but they are systems that efficiently stretch our water supply and do not waste it.

CalAgToday: But again, the vast majority of the water that the tree is taking up is being transpired, right?

Fulton: Yes, most of the time, at least 90% of the water that we apply taken up through the tree and transpired so that photosynthesis can happen.UCCE Tehama County

CalAgToday: And transpiration increases on a hot day?

Fulton: Yes, we do get a little bit of loss from surface evaporation from wet soil, but we try to control that with smaller wetting patterns—drip-confined wetting patterns. When you think about it, the heat of the day is in the afternoon when many irrigation systems don’t run because of higher energy costs. There are incentives not to pump in the middle of the afternoon, but those who do try to confine the wetted area to limit evaporation. And the hot hours of the day make up about 4 hours of a 24-hour cycle, so we irrigate mostly during the nighttime and early morning hours to lesson evaporative loss.

CalAgToday: Growers are doing everything they can to conserve water. If the trees and vines are all transpiring most of their irrigated water, why is using water to grow food a problm?

Fulton: I think the emphasis throughout the United States has always been to provide a secure food supply. That security has many benefits, economically and politically; and in the end, we are trying to provide the general public with good quality, safe food at the best price possible.

______________________________________________

[1]  Debbie Swarthout and C.Michael Hogan. 2010. Stomata. Encyclopedia of Earth. National Council for Science and the Environment, Washington DC.

CIMIS

 

The California Irrigation Management Information System (CIMIS) is a program unit in the Water Use and Efficiency Branch, Division of Statewide Integrated Water Management, California Department of Water Resources (DWR) that manages a network of over 145 automated weather stations in California. CIMIS was developed in 1982 by DWR and the University of California, Davis (UC Davis). It was designed to assist irrigators in managing their water resources more efficiently. Efficient use of water resources benefits Californians by saving water, energy, and money.

The CIMIS user base has expanded over the years. Currently, there are over 40,000 registered CIMIS data users, including landscapers, local water agencies, fire fighters, air control board, pest control managers, university researchers, school teachers, students, construction engineers, consultants, hydrologists, government agencies, utilities, lawyers, weather agencies, and many more.

2021-07-23T14:31:38-07:00September 23rd, 2015|

Ag in the Classroom

Teaching Ag in the Classroom

 

By Charmayne Hefley, Associate Editor

 

As the disconnect between consumers and the source of their food grows, many students do not understand where their food comes from. California teachers are doing their part to bridge the educational gap by teaching ag in the classroom.

Agriculture in the ClassroomKathy Yager, a fifth grade teacher at Fowler Unified School District, as well as a farmer, brings agriculture education to her students in several ways. “We’ve been using programs through the California Foundation for Agriculture in the Classroom,” Yager said.

“I’ve participated in Taste Test grants,” Yager said. The grant allows teachers to bring in a new ag product, “and the students get the opportunity to try those things.” Yager said it also helps expose students to new products, and allows them to become better informDairy Council of CAed consumers in the future.

“We also have visits from the Dairy Council of California and students get to see a dairy cow and how the whole milking process works,” Yager said.

In addition Yager brings farmers, including her own brother, into the classroom to educate students, “and [they] show students how agriculture works and how a product gets from the field, to the stores, and to them.”

Healthy Eating

California Foundation for Agriculture in the Classroom (CFAIC)

More than 7 million California students are fed, clothed and housed with products grown right here on our farms, in our fields and within our forests. California Foundation for Agriculture in the Classroom is dedicated to helping students and teachers across our great state gain an understanding of how agriculture provides the daily essentials necessary to make our society and our world function.

From the cotton in our jeans and the food on our tables, to our landscaped yards and playing fields, we all depend on agriculture. The survival of this vital industry depends on educating and encouraging the next generation of decision-makers. We do this by engaging students and educators in meaningful ways: developing and sharing unique classroom curriculum, supporting school garden efforts, spreading our message at local Ag Days, honoring outstanding educators, rewarding students who learn and write stories about agriculture and so much more.

http://www.cfaitc.org/imaginethis/Featured Programs:

Imagine this… Story Writing Contest

Meet Academic Content Standards for California schools through this creative writing contest!

Create a positive learning experience that promotes reading, writing and the arts, and furthers the understanding of agriculture in our lives by using this award-winning contest in your classroom.

PUBLISHED AUTHOR

State-winning authors will have their stories published in an illustrated book and will be distributed to school libraries and classrooms across the state!

DEADLINE: NOV. 1

Entries must be postmarked by November 1, annually.
Download entry form (PDF, 331 KB)

California Fruits and Vegetables Seasonal Chart (PDF, 18 KB)

2016-05-31T19:27:09-07:00September 22nd, 2015|

1st in a Series on Mental Health on the Farm

Part 1 Mental Health on the Farm

Listening for Negative Thoughts

Resources are provided at the end of this post.

California Ag Today Editor Laurie Greene extensively interviewed Karen Markland, Division Manager for the Fresno County Department of Behavioral Health’s Planning, Prevention and Supportive Services about the mental health needs of those in the agricultural industry who may be emotionally suffering due to the severe drought and environmental water restrictions impacting their livelihoods.

Editor: I have observed that depressed people may say something that implies they are having suicidal ideation, but it is just so easy in our society to tell them, “Oh you’ll snap out of it.” In other words, we tend to dismiss these statements. What do you want to say to listeners on how to respond to someone who says something hopeless? What opportunity does this present to the person who hears someone utter something desperate?

Markland: It is so easy, I say it to myself sometimes, “I want to die; I don’t want to go on.” Those are really important messages, though, for people to pick up on. I really feel it is always important to respond genuinely and supportively. Our statewide California Stigma & Discrimination Reduction Program suggests we go back and say something like, “Each mind matters, and you matter.”

Each Mind MattersThis is an opportunity to have that dialogue; yet often, people will look at me like, “What?” But we all have those moments and we all feel that way at times. Tell people there are resources and support systems. Become familiar with them—whether they are family, clergy, a neighbor, a teacher, County services, a hotline. Likewise, let someone else know when you are not having the best of days.

Editor: It seems as if the general population believes that these issues are not medical issues, that they are within someone’s control, and that perhaps someone is weak or has a bad attitude and they need to change their thinking. What would you like to say to people who don’t recognize that mental illness is a medical illness?

Markland: So, there is a lot of dialogue about ‘What is mental illness?’ versus ‘What is mental health?’ ‘What is mental wellness?’ Clearly, mental illness is a diagnosable medical condition. There are categories in which an individual may have a serious mental illness and these include diagnoses like schizophrenia, bipolar disorder.

These are serious, long-term illnesses, but there is a whole other spectrum of mental illness such as postpartum depression, anxiety disorders, and depressive disorders, which show signs and symptoms that people are functioning outside of their wellness. These are also medical conditions—medical conditions that can be treated in a variety of ways.

Editor: Of course medication is one option. Are there other options?

Markland: Sometimes it is medication; sometimes it is holistic healing; sometimes it is having a positive self-attitude and making sure you get the sleep and the nutritious diet, exercise and more that you need. So it is truly a diagnosable medical condition that can be treated in a multitude of ways, and what we are seeing right now in mental health is a strong recovery movement. People live, grow and recover from mental illness.

Mental HealthThe Fresno Department of Behavioral Health is dedicated to supporting the wellness of individuals, families, and communities in Fresno County who are affected by, or at risk of, mental illness and/or substance use disorders through cultivation of strengths toward promoting recovery in the least restrictive environment.County of Fresno Logo

The Fresno Department of Behavioral Health provides mental health and substance abuse services to adults within the County of Fresno. The programs within our department focus on delivering the highest quality of service. There are over 300 professionals and staff dedicated to providing services in both metropolitan and rural areas. The diversity of our staff has helped us create a department that is sensitive to cultural differences and attempts to bridge the language barriers with our consumers. 

 

2016-05-31T19:27:10-07:00September 22nd, 2015|

Heat Streak and Leafy Greens

Frank Ratto on Heat Streak and Leafy Greens

By Charmayne Hefley, Associate Editor

 

With a high spike in temperatures in the Central Valley, growers of leafy green vegetables are concerned about the quality of their products. Frank Ratto, vice president of marketing for Ratto Bros., a diversified century-old vegetable operation based in Stanislaus County, said that although the heat streak can cause internal burns in leafy green vegetables, he is confident that, with proper management, their leafy greens will be all right.

“The summer leafy green vegetable supply is always pretty good,” Ratto said, “so prices are very stable going into the fall. But, two or three days of a heat wave like the one we’re having right now can cause tremendous damage and escalate the price of our products. That may happen and we could be a victim or we could be a beneficiary.”

Given the heat wave, Ratto said Napa cabbage growers, in particular, are facing some difficulties. “Napa cabbage does not like heat,” he said, “because it will suffer from a lot of internal burns. Many coastal growers are having issues with it, so demand is tight and supplies are very low.”Ratto Bros Logo

Regarding vegetable prices, Ratto said that the price of cilantro was as high as $50 per box for the last three weeks, “but now it’s coming down to the $25 zone. Mexico had some supply issues, but it looks like they’re catching up, and supplies are improving, and the price is going down.”

Other leafy greens such as leaf lettuces, according to Ratto, are in good supply and quality right now.

Ratto said Ratto Bros. has expanded their organic products to include red and La Cinato kale; red, green, and rainbow Swiss chard; leaks; and collard and mustard greens,” among others.

“We’re trying to expand our organic offerings as more people look for organics in the store,” Ratto continued. “As growers, we know that both conventional and organics are healthy and nutritious—and we don’t really see a difference—but we give the consumer what they want. As long as everybody gets healthy, nutritious food, that’s all we care about.”

2016-05-31T19:27:10-07:00September 21st, 2015|

CALIFORNIA WINE is a Brand

Amy Hoopes on How California Wine is a Brand

By Laurie Greene, Editor

The creation of Californian wines led to the realization of a new flavor profile; California Wine is a brand.

Amy Hoopes, chief marketing officer and executive vice president of global sales for Wente Family Estates in Livermore, Calif., said when Californian winemakers developed a new flavor style for wines, they hit home with the youthful American consumer palate. “I think the taste profile for California wines for a long time has been a product that offered more,” Hoopes said.

“It was more fruit forward,” Hoopes explained. “It was bigger. It was bolder. It appealed to the young American palate which had previously had access only to high-end European wines and a confusing French classification, which at that point caused a lot of anxiety,” she noted.

Hoopes said the California brand was able to build upon a flavor profile that matched the grapes grown in the state, “to make styles of wines that just clicked. Consumers say, ‘Wow I feel confident now. This is comfortable. I know what it is; I understand where this is going.’”

“I believe having that kind of focus again is the renewal we’re looking for in the California brand—to reconnect with what more means and to make sure that we’re consistently delivering that taste experience to increase the value behind the brand.”

Founded 130 years ago, Wente Vineyards is the country’s oldest, continuously operated family-owned winery.

2016-05-31T19:27:10-07:00September 19th, 2015|

FarmFacts Banners Line Freeways

Kristi Diener on FarmFacts Banners

By Charmayne Hefley, Associate Editor

 

Farm-friendly banners sporting agriculture facts are beginning to sprout along California freeways in an attempt to reach consumers with the truth behind where their next meal comes from. Kristi Diener, a member of the FarmFacts website steering committee and a fourth generation San Joaquin Valley farmer, said the movement has 40 hosted banners lining several of the state’s freeways and highways from Ventura to Tracy.

Kristi Diener

Kristi Diener

“We wanted to take our message one step further by using the website to expand on the facts presented along the roadways,” Diener said. “We wanted to demonstrate how hardworking farmers are, so we ‘rebranded’ them by sharing onsite photos of growers and their families in their dusty boots, blue jeans and plaid shirts. These people are not greedy, ‘monopoly-banker’ characters; they are real industrious people who have families just like everybody else and are trying to earn a living.”

Diener said the movement plans to focus on positive messages. “While messages sporting the lines “Congress Created Dust Bowl” and others feel good to post,” she said, “they have a negative impact on consumers who already distrust farmers. “For ‘Joe Citizen’, messages like that only reinforce the falsehood that we are the bad people they’ve that we are.”

“We want to provide a positive message that also educates,” Diener elaborated, “one that would garner consumer support for our shared dependence on water.” Diener said the website reinforces the message that farmers are good.

farmfacts logo“People can go onto the FarmFacts website after they see the banners,” Diener said, “see the same banners they passed on the road and gain an expanded version of that fact. Maybe some will take a look around the website. And, perhaps, we can change a few people’s minds about who we are and what we do. Let’s get the truth out there.”

Diener said the movement is hoping to transform the banners into a usable size to be put on trucks so the message can travel further.

2016-05-31T19:27:10-07:00September 19th, 2015|

Fighting ACP in California

Fighting ACP In California to Stay Well Ahead of HLB

By Patrick Cavanaugh, Deputy Editor

With more than 275,000 acres of citrus trees in California, keeping the Asian Citrus Psyllid (ACP) out of groves is a serious concern. Bob Blakely, vice president of California Citrus Mutual, based in Exeter, talked to California Ag Today about how growers are fighting ACP in California.

“We’ve been very proactive, ever since the first psyllid was found here back in 2008. We already had an action plan in place when that psyllid was found. We have engaged with and educated the public and the media, and we have very good cooperation with the state’s citizens,” Blakely said.

Tamarixia radiata (female)

Tamarixia radiata (female); Mark Lewis, UC Riverside Center for Invasive Species Research

Blakely noted the industry is using a variety of methods, “We are usually able to go in and treat urban areas in Southern California, where ACP is now endemic, with crop protection materials. If we determine we cannot control it with pesticides, we implement a new biological program by releasing the parasitoid Tamarixia (a tiny non-native wasp) in residential areas. The new wasp is becoming well-established, and we are hoping the species will help manage ACP populations.”

“We hope to prevent ACP from creating the type of damage seen in Florida, where the citrus industry has been reduced by 50%,” said Blakely. “We are way ahead of the game here in California. We have managed to slow ACP spread in commercial areas in order stay ahead of the spread of the HLB disease the bug carries. We hope a reasonable cure can be found so we can prevent the kind of devastation we are witnessing in some other states.”

2016-05-31T19:27:10-07:00September 18th, 2015|

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