HDT UNIT 1

pheromones are example of

• biochemical pesticides

• microbial pesticides

• PIP

• none

crop rotation helps in

• reload of the soil

• provide nutrients to the soil

• disrupts the weeds

• all

beneficial insects are

• mice

• snake

• lady bugs

• ants

obtaining drug from cultivated source offer advantages because

• cheap and economical

• low cost of labour

• easily available

• ensures continuous supply

in the following method of pest control we establish organic farming

• mechanical method

• agricultural method

• biological method

• none of the above

following are the examples of weed except

• parthenium

• ragweed

• varnish tree

• basil

following are the examples of primary processing except

• parboiling

• leaching

• garbling

• cutting sectioning and communition

__________and ___________are the two methods of propagation

(a)  

____________means harvesting of the plant material

• cultivation

• drying

• collection

• processing

steps involved in processing of herbal drugs are

• selection of herbs

• identification and authentication

• cultivation of herbs

• processing of herbs

• all