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Jassids are also called Leaf Hoppers

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With this, Lesson 2 on Jassids, and Module IV on sucking insect pests in groundnut concludes. ... Course on Insect Pests of Groundnut. Module IV: Sucking Pests ... – PowerPoint PPT presentation

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Title: Jassids are also called Leaf Hoppers


1
Module IV Sucking Pests
Virtual Academy for the Semi Arid Tropics
Lesson 2 Jassids
Jassids are also called Leaf Hoppers Adults are
small greenish colored insects (Fig.). Jassids
fly from the plant canopy when the plant is
disturbed.
Course on Insect Pests of Groundnut
2
Large jassid populations are seen during August
and September, and February and March in
groundnut growing areas in India. High and
well-distributed rainfall and low temperatures
encourage jassid reproduction.
3
Crop Damage Both adults and nymphs suck sap from
young leaves, mostly from the lower surface.
4
Crop Damage The first symptom of attack is a
whitening of the veins. Yellow patches then
appear, especially at the tips of
leaflets. Under severe infestation, the leaf
tips become necrotic in a typical 'v' shape,
giving the crop a scorched appearance known as
'hopper burn'.
5
Management In the initial crop growth i.e. up to
30 days after emergence, if more than 10 of all
leaves have the characteristic 'hopper burn',
apply Dimethoate at 200-250 mL a.i./ha. Any
attack during the later stages of the crop may
not significantly reduce the yields.
6
Module IV Sucking Pests
Virtual Academy for the Semi Arid Tropics

With this, Lesson 2 on Jassids, and Module IV
on sucking insect pests in groundnut
concludes. Next, Module V is about insect
pests that attack roots and pods in groundnut.
Select Module V from Course contents
Course on Insect Pests of Groundnut
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