outline of the topic

1. AEN301
PESTSOF FIELDCROPSANDTHEIRMANAGEMENT -
(1+1)
SAP FEEDERS OF PULSES
SUBMITTED BY,
M.SIVASANGARAN,
B.SC AGRICULTURE.,

2. Name of the
pest
Scientific name Family Order
Bean aphid Aphis craccivora phididae Hemiptera
Thrips Ayyaria chaetophora Thripidae Thysanoptera
Whitefly Bemisia tabaci Aleyrodidae Hemiptera
Green leafhopper Empoasca kerri
Empoasca binotata
Cicadellidae Hemiptera
Pod bug Riptortus pedestris
Clavigralla gibbosa
Coreidae Hemiptera
Lablab bugs /
stink bug
Megacopta cribraria
(Coptosoma cribraria)
Plataspididae
(Coremelanidae)
Hemiptera

3. Bean aphid -Aphis craccivora, phididae ,Hemiptera.
Symptoms of damage
 Leaves, inflorescence stalk and young pods covered with dark
coloured aphids
 Honey dew secretion with black ant movements

4. BIOLOGY
Management
 Emamectin benzoate 5%SG 220 g/ha
 Indoxacarb 15.8%SC 333 ml/ha
 NSKE 5% twice followed by triazophos 0.05%
 Neem oil 2%

5. Thrips: Ayyaria chaetophora, Thripidae; Thysanoptera
Leaves are mottled with characteristic silvering due to the
attack of insect especially
under dry spell on lab lab, black gram, green gram, cow pea.

6. Whitefly: Bemisia tabaci, Aleyrodidae; Hemiptera
Symptoms of damage
 Leave mottled and yellowish in colour
 vector of yellow mosaic virus.
 Severe infestation results in premature defoliation,
 development of sooty mould or honey dew and shedding of
flowers pods.

7. Identification of the pest
 Adults -are small, yellow bodied insects with white wings
which are densely covered with a waxy powder.
 Nymphs and pupae -are black and round or oval. Pupae have
marginal bristles.
Management of sucking pests
Spray any one of the following (Spray fluid 250 l /ha)
 Methyl demeton 25 EC 500 ml/ha
 Dimethoate 30 EC 500 ml/ha.

8. Green leafhopper: Empoasca kerri, Empoasca binotata,
Cicadellidae; Hemiptera
Symptoms of damage
 Leave mottled and yellowish in colour
 Green colour insects found under surface of leaves.
 Nymphs and adults feed on tender leaves and other parts by
sucking the plant sap.
 Incases of severe attack, leaves become brittle and dry.

9. BIOLOGY
 Adult is a minute mosquito like insect with yellow coloured body
with white waxy bloom.
 Nymph is greenish yellow, oval in outline along with puparia on
under surface of leaves.
Management:
 Spray the infested crop with methyl-o- demeton 750 ml in 700 -
1000 L water per hectare

10. Pod bug: Riptortus pedestris, Clavigralla gibbosa and C.
horrens, Coreidae; Hemiptera
Symptoms of damage
 Pods with black spots
 Shedding of green pods
 Poorly filled pods with shriveled grains inside.
 In case of severe infestation the tender parts get shrivelled
and later dried up.

11. BIOLOGY
 Brownish black and hemispherical
 Nymphs – resemble dark brown ants.
Management:
 Dimethoate 30% EC 500ml/ha
 Methyl demeton 25%EC 500ml/ha
 Imidacloprid 17.8 SL 100-125 ml/ha
 Thiamethoxam 25% WG 100 g/ha

12. Lablab bugs / stink bug: Megacopta cribraria (Coptosoma
cribraria), Plataspididae (Coremelanidae); Hemiptera
Symptoms of damage
 Cluster on the plant parts and suck the sap.
 Both nymphs and adults cluster on the tender shoots and suck
cell sap.
 Heavily infested wines dry and shed away. Moderately infested
plants remain weak and stunted in growth.
BIOLOGY
 Nymphs and Adult - sub globular, oval and greenish shield
bug.
 It has a characteristic buggy odour

13. THANK TOU….