Lindcove Research and Extension Center
University of California
Lindcove Research and Extension Center

Madera County DD

CRS degree days

Degree days as of June 28, 2022, Madera County: 1508 DD. Second-generation male flight already passed. Expect crawlers’ this week. Crawlers and white caps (first instar) are the most insecticide susceptible life stage.

Biofix: 1st male flight: March 15

Lower developmental threshold = 53°F

Degree days from first male flight to crawler emergence: 550 DD

2nd male flight: 1100 DD

2nd generation crawlers: 1650 DD

For updated information, click here.

Individual field conditions may vary. Monitor Individual fields. For treatment recommendations UCIPM Guidelines for citrus

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