_________ type of surfactant having both positive and negative charges.
Methyl bromide acts as a soil __________ __in tobacco nursery.
________________ bioagent is used to control Parthennium histerophorus.
_______________ mycoherbicide is used to control Johnson grass.
____________ crop suppresses weed growth by smothering effect.
_____________ herbicide is used as broad spectrum herbicide for weed control.
An application of herbicide after emergence of weeds is known as ___________.
An application of herbicide at last cultivation in the crop is known as __________.
Post emergence application
___________ is a curative method for weed control.
An application of herbicide in restricted area of row length is known as_____ .
A text book entitled “Principles of weed science” is written by ________.
O. P. Gupta
V. S. Rao
N. C. Joshi
Paraquat is a _______ herbicide.
According to ontogeny, congress grass is classified as _______.
_________ weed covered most of forest area in our country.
_______ weed seed admix with wheat flour gives bread a bitter taste and irritates the gastric tract of the consumer.
_______ weed is used for leafy vegetable.
Lantana contains _______ toxic alkaloids.
_______ weeds has phenotypic mimicry in rice crop.
_______ is a crop bound weed in mango orchard.
_______ dormancy usually results of hard seed coat of weed.
______ are helps to antagonize phytotoxicity of specific herbicide to specific plant.
______ allows herbicide to get through to the outer surface to inside of the treated area.
The study of relationship between communities of different weed spp. with their environment is known as _____ .
The presence of ______ weed is indicated by moisture stress appearance of the crop despite of adequate soil moisture.
The process of gene transfer to create herbicide resistance in crop plant is known as_________.
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