Cereal crop mites

2. Bionomics
• 25-30 generations/year in southern China;
overwinter as female adults in soil slot and
around rootstalks of vegetables and weeds.
• Continues to grow and reproduce in
greenhouse in winter in northern China. It
is not clear about its overwintering
outdoors。
• Great # in greenhouses from March to
April; severe damage to outdoor vegetables
from Jun. to Oct.