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All Insect Pest Of Chilli And Their Chemical Control | Mirch Ki Sabhi Keet Aur Unke Prabandhan

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Gram caterpillar: Helicoverpa armigera

Symptoms of damage:

Early instar feeds on foliage

Grown up larvae mainly bore into the fruits.

Identification of pest:

Eggs: Are spherical in shape and creamy white in colour, laid singly

Larva: Shows colour variation from greenish to brown

Pupa: Brown in colour, occurs in soil, leaf, pod and crop debris

Adult: Female is brownish yellow stout moth, Male is light greenish in colour with “V” shaped markings.

Management:

Collect and destroy the infected fruits and grown up larvae

Setup pheromone trap with Helilure at 15/ha

Six releases of Trichogramma chilonis @50,000/ha per week coinciding with flowering time

Release Chrysoperla carnea at weekly interval at 50,000 eggs or grubs / ha from 30 DAS.

Spray HaNPV at 1.5x1012 POB/ha along with cotton seed oil 300 g/ha to kill larvae.

Spray carbaryl 50 WP 2 g/lit or B. thuringiensis 2 g/lit

Provide poison bait with carbaryl 1.25 kg, rice bran 12.5 kg, jaggery 1.25 kg and water 7.5 lit/ha or spray any one of the following insecticide

Spray any one of the following insecticides


Crop Protection :: Pest of Chilli

Yellow mite or muranai mite: Polyphagotarsonemus latusSymptoms of damage:

Downward curling and crinkling of leaves

Leaves with elongated petiole

Stunted growth

Identification of pest:

Egg: Oval shaped eggs and white in colour

Nymphs: white in colour

Adult: Large, oval and broad and yellowish in colour

 
yellow mite - AdultManagement:

Encourage the activity of predatory mite: Amblyseius ovalis

Apply phorate 10 % G @10 kg/ha or spray any one of the following insecticide





Chilli Thrips
thrips: Scirtothrips dorsalis

Symptoms of damage:

The infested leaves develop crinkles and curl upwards

Elongated petiole

Buds become brittle and drop down

Early stage, infestation leads to stunted growth and flower production, fruit set are arrested

Identification of pest:

Nymph: Are small, linear, easily fragile abdomen with straw yellow colour

Adult: Fringed wings

Chilli thrips infestation - upward curlingAdult

Management:

Inter crop with agathi (Sesbania grandiflora) to provide shade which regulate the thrips population

Do not grow chilli after sorghum

Do not follow chilli and onion mixed crop

Sprinkle water over the seedlings to check the multiplication of thrips

Treat seeds with imidacloprid 70% WS @ 12 g/kg of seed

Apply carbofuran 3% G @ 33 kg/ha or phorate 10 % G  @ 10 kg/ha or

Spray any one of the following insecticide


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Crop Protection :: Pest of Chilli

Green peach aphid: Myzus persicae

Symptoms of damage:

The infested plants turn pale with sticky appearance

The leaves curled and crinkled

Honeydew excrete - development of sooty mould

Stunted growth of the plant

Identification of pest:

Nymphs: Initially are greenish, but soon turn yellowish

Adults: yellowish green in colour

 

Management:

Treat seeds with imidacloprid 70% WS @12 g/kg of seed

Apply phorate 10 % G @10 kg/ha

Spray any one of the following insecticide

obacco cutworm: Spodoptera litura

Symptoms of damage:

Newly hatched larvae scrap the green matter in the leaf

Affected leaf looks like a papery white structure

Later instar larvae feed by making small holes

In severe infestations they feed voraciously on the entire lamina and petiole

Identification of pest:

Egg: Eggs are golden yellow, laid in masses and covered by silky hairs.

Larva: Are seen in groups, young caterpillars are light green with black head or black spots

Adult: Are brown in colour. Forewings are brown colour with wavy white markings, hind wings are white colour with a brown patch along the margin.

Management:

Plough the soil to expose and kill pupae

Castor as a trap crop

Set up pheromone trap @15/ha

Collect and destroy the egg masses, gregarious larvae and grown up caterpillars

Spray SINPV @ 1.5x1012 POB/ha in evening hour

Spray any one of the following insecticides