Question: Which of the following is an egg larval parasite of the internode borer?
Options:
a) Trichogramma chilonis
b) Sturmiopsis inferens
c) Campoletis chloride
d) None of these
🔑IMP Key Points:
-Trichogramma chilonis is an egg parasitoid and agent under biological control of lepidopteran insect pests.
-It is effective against bollworms of cotton. Since it attacks the egg stage, damage done by larvae is avoided.
-Application at 6.25 cc/ha at 15 days interval 3 times from 45 DAS  is found effective.
-Mass production of the parasitoid requires laboratory culture of a host insect and a nucleus culture of the parasitoid.
-Corcyra cephalonica has been used for mass multiplication of T. chilonis.