Plant Protection
 
Tea Insect Management
Tea red spider mite

Numbers of tea red spider mites vary depending on season. Their number increases as the weather warms up and decreases markedly once rains set in.

Damage and symptom:
Tea of all ages is attacked, the upper surface of the mature leaves darken and turn brown. The leaves then dry up and drop off, reducing the maintenance foliage. The mites and their egg shells can be seen on the upper surface of the leaves with a naked eye but more visibly if magnified, the front part of their bodies is red and hind part is purple. Signs and symptoms of red spider infestations show up early in unpruned than in pruned tea, because the pest survives on the old leaves in the canopy.

Control:
1、Biological control: Build up of natural enemies (phytoseiid mites and coccinellid beetles (lady bird beetles) in tea ecosystem.

2、Cultural control: Monitoring the population dynamics by regular field assessment, shade/weed management and removal of alternate host plants (Bidens, Ageratum, Conyza, Crassocephalum, etc).

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