SCIENCE
PLANT KINGDOM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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They will cause afforestation
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They cannot be eliminated in Pakistan
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Natural predators with prey on them are not available in Pakistan
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They are likely to transmit exotic diseases to the crops in Pakistan
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Detailed explanation-1: -Imported pests threaten forest health, local economies, and the benefits trees provide to cities and communities. Insects and tree diseases imported as a byproduct of global trade are the most severe and urgent threat to forest health in much of the US.
Detailed explanation-2: -The common mosquito is often considered the most dangerous insect because it can transmit diseases like West Nile and (more commonly) malaria to its victims. Each year, this pest kills one million people around the world. Our Seabrook pest control can also help you control a mosquito infestation, if you have one.
Detailed explanation-3: -Angoumois grain moth or Grain moth: Sitotroga cerealella Host range: Paddy, maize, jowar, barley and wheat (rarely). Larvae damage grains, adults being harmless. Grains are hollowed out. It attacks both in fields and stores.
Detailed explanation-4: -Rice weevil is an insect that infests stored grains, especially rice. Both larva and adult are considered as pests. The adult female insect penetrates the grain and puts its seed inside the grain, then seals the hole with a gelatinous substance. The insect’s life cycle at 28°C and relative humidity of 70% is 35 days.