What is the ratio of parastiod : host eggs in trichocard production?
A. 1 : 10
B. 1 : 6
C. 1 : 100
D. 1 : 12
Answer: Option B
Solution(By Examveda Team)
1 : 6 is the ratio of parasitoid: host eggs in trichocard production.The emerging parasites readily parasitize the fresh eggs. The parasitoid-host ratio is adjusted accordingly to 1 : 6 to get effective parasitism.
The parasitized eggs in the Tricho Card turn back in 3 or 4 days and the adult parasitoids emerge in 8 to 10 days from the date of parasitization.
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