Abnormal Weather, Temperatures, and Pests

A Year of Unusual Weather Affects Vegetable Crops

By Mikenzi Meyers, Associate Editor

A year filled with abnormal weather is starting to show its effects on vegetable crops. Tom Turini of the University of California Cooperative Extension Fresno County, who is a plant commodity specialist, shared some of the early seasonal problems he has witnessed.

“We had unusual weather this year—a very cool, late spring—and with the rains we’ve had, we expected to see some issues that are unusual. We just didn’t see the incidence of those problems that we would have expected,” Turini said.

Turini added that levels of beet curly top are relatively low and tomato spotted wilt is densely populated in some areas. He also noted that the early appearance of the consperse stink bug seems to be having a measurable impact on crops, specifically on the west side of Fresno County.

Beet Curly Top Virus ALERT

A small population of Beet Leafhoppers  (BLH) was found in the Tumey Hills area. Counts were on average, 7-9 2nd and 3rd instar nymphs and 1-3 adult BLH, per 10 sweeps.

Curly Top Virus Control Program

Another small population of BLH was found in the Coalinga “Big C” area last week. Counts were on average, 2-3 adult BLH and 5-10 2nd and 3rd instar nymphs, per 10 sweeps.

The Beet Curly Top Virus Control Program is currently planning treatment in the Tumey Hills area for this week. Treatment plans and waivers are being prepared for the Coalinga area.

Email jennifer.willems@cdfa.ca.gov if you suspect curly top virus in your fields, so that the BCTV program can monitor and collect samples for testing. Thank you!