WHITEFLY
Causal organism: Bemisia tabaci
Symptoms of damage
- Yellowing of leaves(Chlorosis)
- Leaves have chlorotic spots.
- Downward curling and drying of leaves
- It is a vector of tomato leaf curl disease
Identification of pest
Egg
Are pear shaped, light yellowish in colour
Nymphs
Are oval, scale-like and greenish white in colour
Adult
Are white, tiny and scale-like
Management
- Use yellow sticky traps at 12/ha to attract and kill insects.
- Apply carbofuran 3% G @ 40 kg /ha
- Use insecticides like Acetamaprid
- Use Pyriproxyfen
- Afidopyropen 50
- Dimethoate at 1ml/lit
SERPENTINE LEAF MINOR
Causal organism: Liriomyza trifolii
Symptoms of damage
- Leaves are full of serpentine mines
- It causes drying and dropping of leaves
- Loss of yield
Identification
Eggs
Are yellow in colour and are hatched on leaf epidermis of plants
Larva
Are minute orange yellowish in colour and legless maggots
Pupa
Are yellowish brown in colour and pupates within mines
Adult
Are pale yellow in colour
Management:
- Use Benevia
- Use Bio R 303 + Daman 47
- Spray NSKE 5%
FRUIT BORER
FRUIT BORER
Causal organism: Helicoverpa armigera
Symptoms of damage
- Young larva feeds on tender leaves.
- Mature larva makes circular holes
- Inserts only a part of its body into fruit and eats the inner content
Identification of pest
Eggs
Are are creamy white in colour and laid singly
Larva
They showcolour variation from greenish to brown
It has dark brown grey lines on the body with lateral white lines and also has dark band
Pupa
Arebrown in colour and found in soil, leaf, pod and crop debris
Adult
Female is light pale brownish yellow stout moth
Male is pale greenish moth and has V shaped speck.
- Forewings:Areolive green to pale brown in colour with a dark brown circular spot in the centre
- Hindwings: Are pale smoky white with a broad blackish outer margin
Management
- Use Daman 47
- Coragen
- Vayego
- Emamectin benzoate
THRIPS
Causal orgamism: Thrips tabaci
Symptoms of damage
- Silvery streaks on leaf surface
- Pre-mature dropping of flowers
- Bud necrosis.
- Vector of tomato spotted wilt virus.
Identification of pest
Eggs
Are yellow in colour and are laid singly.
Nymphs
Are yellowish in colour.
Adult
Are dark coloured with fringed wings
Management
- Use Bio R 303
- Use delegate
- Use tracer
LEAF EATING CATERPILLAR
Causal organism: Spodoptera litura
Symptoms of damage
- Young larva scrapes the leaves on ventral surface
- Grown up larvacauses defoliation ofthe crops
Identification of pest
Egg
Are laid in masses and appear golden brown
Larva
ArePale greenish with dark markings, gregarious(found in group) in the early stages
Adult
Are Brownish in colour
Forewings are brown colour with wavy white markings
Hind wings are white colour with a brown patch along the margin
Management
- Spray Chlorpyriphos @ 2l/ha
- Use Dichlorovos 1l/ha
