POTATO TUBER MOTH
Causal organism : Phthorimaea operculella
SYMPTOMS OF DAMAGE
- This pest can be seen both in field as well as in storage condition
- Larva bores and makes tunnels in the foliage, stem and tubers
- Galleries can be seen near tuber eyes.
Management
Use insecticides like Emamectin benzoate
Dimethoate
Bayer larvin
Lamda cyhalothrin
BLACK CUTWORM
Causal organism : Agrotis ipsilon
Symptoms
- Young larvae feed leaves and its epidemis
- Older larvae cut the stem of the plants by its feeding habit in the
- They also damage the tubers by feeding on them
MANAGEMENT
Use Chlorpyriphos @ 20l/ha
Use pheromone traps
Use insecticides like dimethoate and emamectin benzoate
WHITEFLY
Causal organism : Bemisia tabaci
SYMPTOMS OF DAMAGE
- Yellowing of leaves
- Curling of leaves can be observed
- Nymphs suck sap from the leaves and lower their vitality
- Sooty mould develops on affected leaves due to honey dew secretion
MANAGEMENT
Use Daman cotto 12 @ 1-1.5ml/lit
Use Bifenthin
Use of Acetamaprid can control whiteflies
GREEN PEACH APHID
Causal organism : Myzus persicae
SYMPTOMS OF DAMAGE
- Aphids suck the cell sap from the leaves
- It results in dryness and paleness of leaves
- This pest also transmits various viral diseases to potato plants
- Finally loss of crop and yield can be seen
MANAGEMENT
Use Insecticides to control aphids like Shine @ 1-1.5 ml/lit
Dimethoate
Acetamaprid
Bio R 303 @ 1.5ml/lit