Spotted bollworm

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    13-Apr-2017
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Transcript of Spotted bollworm

SPOTTED BOLLWORM / SPINY BOLLWORM

1

SUBMITTED TO :

SIR IRFAN GILAL

SUBMITTED BY :

GROUP LEADER : 2K14 - PD -161

2K14-PD-149 , 58 , 111 , 120 , 49 , 164 , 10 , 107 , 188

SPOTTED BOLLWORM / SPINY BOLLWORM

CLASSIFICATION

Kingdom = Animalia

Phylum = Arthopoda

Class = Insecta

Order = Lepidoptera

Family = Nolidae

Genus = Earias

Specie = Insulana / Vitella

B.Name = Earias Insulana / E.Vitella

IDENTIFICATION

LARVAE

Earias insulana :- Brownish, white median and longitudinal streak on dorsum. It has tubercles.

Earias vitella:- Brownish, with longitudinal white stripes on dorsum. It hasnt tubercles.

Adult

E. insulana:- uniform silvery green forewings.

E. vitelli:- Buff color forewings with green band on middle.

DAMAGE

Drying and drooping of terminal shoots.

Shedding of square and young bolls.

Flaring up of square during square formation.

Affected Bolls drop off prematurely and badly openings.

MANAGEMENT

CULTURAL CONTROL

Deep ploughing

Trap crop ( Okra )

Avoid excess use of nitrogen

Dont extend the crop period

Clean cultivation

MECHANICAL CONTROL

Collection and destruction of affected parts of plants

Set up bird perches

Pheromone traps @ 10/ha

BIOLOGICAL CONTROL

Release egg parasitoid Trichogramma chilonis, T.brasiliensis.

Release larval parasitoid chelonus, Black burni or Bracon, Apanteless.

CHEMICAL CONTROL

Endosulfan 35 EC 2.5 L/ha

Triazophos 40 EC 2.5 L/ha

Cypermethrin 10 EC @ 600-800 ml /ha

Neem based formulation @ 500-600 ml/ha