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Consider the following statements regarding pest management in rice and choose the correct options: (a) ETL for rice earhead bug in milky stage is 10
Question

Consider the following statements regarding pest management in rice and choose the correct options:
(a) ETL for rice earhead bug in milky stage is 109 bugs/hill.
(b) Use of synthetic pyrethroids may cause resurgence of sucking pest in rice.
(c) Tip drying and orange discoloration of rice leaves is a typical symptom of Recilla dorsalis.
(d) Alternate wetting and drying is a good management technique for controlling B.P.H. in rice.

A.

(A), (B) and (D) only.

B.

(A), (B) and (C) only.

C.

(A), (C) and (D) only.

D.

(B), (C) and (D) only.

Correct option is D

· Synthetic pyrethroids can cause resurgence of sucking pests like brown planthopper (BPH) by killing natural predators.
· Recilla dorsalis (green leafhopper) causes tip drying and orange discoloration in rice leaves.
· Alternate wetting and drying (AWD) is an effective method for controlling BPH, as it reduces standing water, which is favorable for the pest.

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