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After the record heat in March, April has cooled to more normal temperatures. Thrips generation predictions have not changed much since last update. We’re approaching the peak of the second generation; adults are feeding and laying their eggs. The third generation is currently predicted to peak around the…
With a dryer-than-average winter, warm nighttime temperatures, and record-breaking high daytime temperatures in March, 2026 is off to a warm start. Figure 1. Recorded temperatures (blue bars) between 10/01/2025 and 10/23/2026 for Davis, CA, compared to our normal temperature range (beige…
General outlook & thrips population Tomato planting is over, and with the excellent weather we have been having fields are progressing well. Adult 3rd generation thrips are peaking, and over the next few weeks will be laying their eggs. Any thrips that acquired the virus as larvae by…
General outlook & thrips population Thrips population predictions are similar to last week’s update. Generation three is maturing, and adults are predicted to peak 6/8. For most crops the 3rd and 4th generations will present the highest risk of TSWV spreading and causing yield loss. …
General outlook & thrips populationAs planting wraps up, temperatures remain similar to long-term averages. Thrips population predictions are similar to last week’s update. Generation 2 adults peaked a couple weeks ago; generation three adults are predicted to peak 6/8. The 3rd and 4th…
