The diagrams below shows two weeds labeled A and B. Study them and answer questions that follow.

      

The diagrams below shows two weeds labeled A and B. Study them and answer questions that follow.

weed.png

(a) Identify the weeds labeled A and B.

(b) Give one reason why the weed labeled A is referred to as a parasitic weed

(c) Name two crops that the weed illustrated A above commonly attack

(d) Give one reason why it is very difficult to control weed labeled B.

(e) State one cultural method of controlling weed labeled A.

  

Answers


Martin
(a) A- Striga (Witch weed)/ Striga hermontheca

B – Couch grass Digetaria Scalarum

b) Attaches itself to the roots of cereal crops and obtain nourishment from them.

c) Maize, Millet and Sorghum.

d) Has well developed underground rhizomes.

e) Crop rotation and trap cropping
marto answered the question on September 25, 2019 at 05:31


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