List of top Agronomy Questions on Weeds asked in ICAR AIEEA (PG)

Optimum temperature and relative humidity for microbial degradation of herbicides in soil is

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Which among the followings is used as modifier for herbicides?

The major site of uptake for soil applied herbicides are:
A) Root
B) Shoot
C) Seed
D) Leaves

The first commercially available robotic weeding machine is known as

Which of the following combinations is not correct?

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Read the following statements regarding biological weed control.

A. It is ecofriendly because of no pollution.
B. It is long lasting because of its slow action.
C. A particular weed can be controlled in inaccessible areas.
D. It can lead to 100% control of a particular weed.
E. It is economical in the long-run.

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Which of the following weeds is an annual weed?

Which of the following herbicides is a contact herbicide?

From the following statements, find out the incorrect one

Match the following:

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Read the following statements.
A) Orobanche is total stem parasite of tomato
B) Cuscuta campestris is total stem parasite of linseed
(C) Loranthus longiflorus is partial stem parasite of mango
D) Broom rape is obligate root parasite of mustard

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For weeds evolution, CSR refers to

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Weed seed dispersal by ants is known as

Statement A: 2,4-D should be applied in grain Sorghum when it attains a height of 10-30 cm.
Statement B: 2,4-D should be applied in wheat 18-25 days after sowing

Arrange herbicides in ascending order with respect to their first synthesis:
(A). Paraquat
(B). Pretilachlor
(C). Pendimethalin
(D). Simazine
(E). Sulfosulfuron
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Given below are two statements:
Statement (I): An herbicide label is a legal contract between manufacturer, user and regulatory body.
Statement (II): Flowable formulation is an example of liquid formulation.
In light of the above statements, choose the most appropriate answer from the options given below.

The first case of confirmed herbicide resistance in weed was reported by ______.

Argemone mexicana is an objectionable weed of _____