ScienceWhy are there so many caterpillars in Beijing this year?

Beijing is seeing the peak of the fall webworm’s third generation, with mature larvae leaving trees to pupate and becoming highly visible. Warmer winters improved overwintering survival, while frequent summer rain disrupted spraying. Authorities are removing webbed branches, trapping larvae, using targeted pesticides and releasing about 1.1 billion parasitoid wasps for biological control.

Beijingfall webwormbiological control

CCGTN★★☆☆☆2026-09-30 06:54Original