21.
Carrot broth method is used for mass multiplication of

22.
Example of an insect order in which nymphs are called naids

23.
In insects the 1st pair of post oral appendages are

24.
Atropine is alan

25.
Dasineura lini is the pest of

26.
Paedogenesis is basically a type of

27.
Nibbling of rice earhead and defoliation leaving midrib in rice is caused by

28.
Silk gland is a modified part of labial gland and . . . . . . . . in origin.

29.
Sudden trapping is used for

30.
Number of nymphal stages is Acarina is

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