AgroStar Krishi Gyaan
Pune, Maharashtra
12 Dec 19, 03:00 PM
Insect Life CycleAgroStar Agronomy Centre of Excellence
Life Cycle of Thrips
Economic Importance: Thrips generally damage various crops such as cotton, chilli, onion, garlic, groundnut, castor, cucurbits, guava, coconut, etc. Some species also work as vector and transmit viral diseases.
Lifecycle: Eggs: Female insect insert the eggs about 50 to 60 in tissue of the leaves. Eggs are kidney shaped, and its period is about 4 to 9 days. Nymphal Stage: These are wingless, minute and light yellow in colour. Nymphal period is about 4 to 6 days. Pupal Period: Nymphs crawl down toward the ground and take pupation under leaves litters and at a depth of 2.5 cm in soil. Adult: The emerging adults are 1 to 2 mm in length and yellowish with brown/black markings with fringed wings; these are very active. Control Measures: • Initially spray neem base pesticides or microbial insecticides. • On higher incidence, spray Buprofezin 25 SC @ 20 ml or Clothianidin 50 WG @ 5 g or Cyantraniliprole 10.26 OD @ 10 ml or Diafenthiuron 50 WP @ 10 g or Spinosad 45 SC @ 7 ml in 10 lit of water as per recommended crops.
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