- Author: Neil McRoberts
Daytime high temperatures will be in the high 70's to mid 80's over the next few days before things cool off a little on Friday, when the San Joaquin valley is forecast to see some rain. These temperatures are ideal for thrips development and the season has a little ahead of the rate we would expect based on the 30-year average temperatures; the second post-winter generation of adults is expected to peak on 4/30, with the third generation expected to peak around 5/31. So far we haven't had reports of TSWV outbreaks in the area, so there's a good chance to stay on top of the TSWV risk if you are planning to use an insecticide to suppress thrips development. With low virus levels in the area, treatments applied to knock down the second thrips generation (in late April) or the third generation (in late May) will likely have a good effect. Overall the immediate TSWV risk generally low.