Dept. Of Entomology

Dept. of Entomology Submitted to: N. S.. Bhadoria

Submitted by puralal patidar Batch – ‘B’ Roll no. 5006

Systemic position:Scientific name Order: Family Host plant Damaging Stage

: ::::-

Indarbela tetraonis lepidoptera Tetragridae Citrus,ber Larva(Caterpillar)

PHOTO :-

IDENTIFICATION  Fully developed caterpillar is dark brown

coloured and about 3 to 4 CM in length.  It has small hairs on body.

NATURE OF DAMAGE : The larval stage is the damaging stage

which has chewing and biting type mouth part . Initially the larva feed on bark. Larva this makes hole in the stem and branches. It is active in night.

LIFE CYCLE  Egg

:- 5 to 7 days.

 Larva

:- 15 to 20 days.

 Pupa

:- 7 to 10 days.

 Adult

:- 3 to 5 days.

LIFE CYCLE EGG

COMPLETE METAMORPHOSIS



ADULT

LARVA

MANY GENERATION IN A YEAR

PUPA

CONTROL:-





Use of resistant variety.

Spray of 0.05% trichlorophen or parathion and 0.1% BHC or Carbaryl or endosulphan.

FRUIT FLY OF CUCURBITAE

Systemic position: Common name  Scientific name  Order  Family  Host plant  Damaging Stage

:- Son makhi, Fal makhi :- Dacus cucurbitae Cop. :- Diptera :- Trypetidae :- Karela,melon,taroi, tinda,and tomato. :- Maggut.

PHOTO

IDENTIFICATION  EGG:- The fly lays small, shiny whitish

cigar shaped eggs in small clustered just under the skin of the fruit with the help of her ovipositor and measuring 0.6 mm long. Each cluster may have 4 to 10 eggs. Female lays about 300 eggs in her life span. The hatching periods of eggs varied from 2 to 9 days.

 LARVA:- They are white in colour and

measuring 1mm long. The larval period takes 7 to 8 days. Full grown maggot is 19 mm long and 2mm wide.

 PUPA:- It is 11 segmented and 5.5 mm long with ligth yellow in colour. The pupal period generally lasts 6-7 days.

 ADULT:- The fly is reddish-brown in colour with black and white spots. It measures about 7mm in length and 3mm in breadth. There are 3 brigth yellow stripes on the meta-thorax.

LIFE CYCLE

EGG COMPLETE METAMORPHOSIS

ADULT

LARVA

MANY GENERATION IN A YEAR

PUPA

CONTROL : The ploughing of fields two to three times

reduces the pest population by exposing the pupae to enemies.  Spray malathion 50 Ec/wp-2.0 lit. or 2.0 kg/ha.  Spray carbaryl 50 wp-3.0 kg/ha.

NATURAL ENEMIES: The following are the pupal parasite of the

pest.  Opius fletcheri silv. 

Opius incisus silvi.