General Situation: Daily high temperatures will be swinging between the low 70s and high 80s F over the next 10 days. These are ideal conditions for thrips development. Monday May 5th will be hot and breezy with peak wind speeds between 20 and 25mph.
Thrips development: Generation 2 adults will reach their peak numbers in the next few days. Generation 3 will be developing on plants this month, reaching peak adult numbers at the end of the first week in June (projected for 6/8 based on current conditions). Generation 4 will be developing on plants during June, reaching peak adults around July 3rd. For most crops these two generations will present the highest risk of TSWV spreading and causing yield loss. Focusing thrips treatments into the next 8-9 week window will help keep TSWV damage to a minimum.