The Beet Curly Top Virus Control Program (BCTVCP) began treatment on April 10 in the Kettleman Hills area. Field conditions became too windy, so crews headed north to the Big C area near Coalinga, in Fresno County.
Field conditions there allowed for some treatment to begin however, the wind picked up and the Program was not able to finish. Program personnel also encountered an uncooperative large corporate non-ag entity that has not granted permission to treat any of their property at this time. Program personnel are attempting to reach an agreement.
On April 11, the Program attempted to finish the Big C near Coalinga, however, the large corporate non-ag entity requested that treatment not take place until the following day due to an internal notification error.
Field conditions quickly became unfavorable in the Big C. Crews were able to move south and finish off the Kettleman Hills.
The Program was granted permission to treat the property west of Interstate 5, from Kamm Avenue south to Arroyo Hondo. Field conditions were too windy for treatment to begin on April 12th. The property was rescheduled for Monday, April 15, weather permitting.
There were bees in one section off of Kamm Avenue that cannot be moved that the Program is required to leave a one-mile buffer for. BLH counts on this property were 20-30 adult and nymphs per 10 sweeps.
The Program has made arrangements to conduct treatment in the Buena Vista Hills and Elk Hills over the weekend, weather permitting. BLH counts in the Buena Vistas were 100+ adults and nymphs per 10 sweeps. BLH counts in Elk Hills were 15 adults and nymphs per 10 sweeps.
Samples: “Positives” Turning Up
In Fresno County, there were a total of eight BLH samples collected from January-March. Six of the eight samples were positive for curly top virus. The remaining two samples were negative for curly top virus.
In Kings County, there were a total of six BLH samples collected from January-March. All six samples were positive for curly top virus.
In Kern County, there were a total of ten BLH samples collected from January-March. Five of the ten samples were positive for curly top virus. The remaining five were negative for curly top virus.
The Program would like to remind growers and PCA’s that any fallow fields or weedy areas adjacent to susceptible crops should be inspected for BLH prior to disking or mowing. If a BLH infestation is present, please use an insecticide first.