Beet root insects A Lecture By Allah Dad Khan Provincial Coordinator IPM MINFAL Islamabad

2. Beet Insects
A
Lecture To ToT trainees ( FFS)
By
Mr. Allah Dad Khan
Provincial Coordinator IPM KPK
MINFAL Pakistan

4. Leafminers
Lyriomyza spp.
Symptoms
• Thin, white, winding trails on
leaves; heavy mining can result in
white blotches on leaves and
leaves dropping from the plant
prematurely; early infestation can
cause fruit yield to be reduced;
adult leafminer is a small black
and yellow fly which lays its eggs
in the leaf; larave hatch and feed
on leaf interior
• Cause
• Insect

5. Darkling beetle (Rove beetle)
Blapstinus spp.
Staphylinid spp
Symptoms
• Feeding damage on stems;
death of seedlings; seeds
dug up; insect is a dull blue-
black or brown beetle about
0.6 cm (0.52 in) long; tips of
antennae are often
enlarged, resembling a club
• Cause
• Insect

6. Aphids
Symptoms
• A wide range of aphid species can
affect field crops. Most are small
(only a couple of millimetres long)
with oval-shaped green, brown or
black bodies. Often occurring in
colonies, aphids suck on sap,
causing loss of vigour, and in some
cases yellowing, stunting or
distortion of plant parts. Honeydew
(unused sap) secreted by the
insects can cause sooty mould to
develop on leaves. In crops such as
cotton, the honeydew affects fibre
quality. Aphids can also be vectors
(carriers) for viruses.

7. Vegetable weevil
Symptoms
• Larvae and adults chew
sections out of the leaves of
seedlings, usually in the
evening and night.
Seedlings may be retarded
or killed by feeding.

8. Beet Webworm
Symptoms
Larvae mainly feed on leaves
but can affect flowers and
pods, webbing plant parts
together and feeding inside
Beet webworm (Spoladea recurvalis)
moth at rest showing white bands