XII. Tea
1. Tea
mosquito bug: Helopeltis
theivora :Miridae:Hemiptera.
- Due to intensive feeding, leaves curl up, become badly deformed and remain small. Gradually, shoots dry up
2. Looper
cater pillar:Biston suppressaria :Geometridae :Lepidoptera.
- Adult - grey wings speckled with light brown or black markings and irregular wavy yellow lines.
- Grown up larvae feed entire leaf leaving midrib alone.
- Larva is a smooth greyish
- Adult is a golden brown moth.
- Defoliation.
4. Lobster Caterpillar, Neostauropus alternus Notodontidae:
Lepidoptera.
- Moths have greyish white wings with a few reddish brown spots on forewings.
- Two or three caterpillars can completely devour all the leaves of a small plant in two to three days.
5.Flush worm: Cydia leuocostoma :Tortricidae: Lepidoptera.
- Adult is a very small moth, blackish brown in colour.
- Larva is brown.
- Caterpillar ties up the margin of tender leaves
and forms a case
enclosing the bud.
Affected leaves
become
rough,
crinkled
and leathery.Shoot
growth arrested
if damage occurs
on bud.
webbing of tender leaves
6. Tea
tortrix:Homona
coffearia: Tortricidae: Lepidoptera.
- Larva is green in colour. Larval period is 20-30 days. Pupation takes place inside the leaf cases.
- Adult moth is brown coloured and bell shaped in outline while at rest.
- Defoliation.
Adult |
Bell shape at Rest |
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