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Insects are harmful to crops because they can be carrying dirty kinds of bacteria, and they can cause diseases in plants and kill plants.
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∙ 11y ago
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What is the differences between helpfull insects and harmful insects?
Well harmfull insects are those that do damage to crops and helpfull insects are insects that help crops by either A:helping in the pollination of the crop or B: by eating or driving out those insects that are harmfull to the crops
Why are grasshoppers Harmful insects?
In many areas, grasshoppers are considered harmful insects. They have the ability to devastate large areas of crops and other important plants.
What are harmful insects?
Harmful insects are insects that are harmful in any way to plants, animals or humans. There are many ways in which insects can be harmful to the above; insects such as locusts can form huge swarms that can destroy whole crops in minutes. Other insects can pierce a leaf or stem of a plant and suck out its juices, leaving the plant to wither and die. Various types of insect carry diseases such as malaria and encephalitis which leave many children in developing countries orphaned and many parents childless.
Why are frogs your friends?
You probably meant a farmer's friend. Or you really did mean your friends. They will eat the harmful insects eating crops.
Harmful effects of arthropods to man?
Certain arthropods can have serious harmful effects on mankind. Certain insects will eat cash crops causing negative economic growth and loss.
Is the existence of insects required to maintian life on earth?
Yes, as they provide many beneficial functions. A couple of examples are the pollination of food crops, and as important important members of the food chain. There are many insects that are beneficial to both humans and plant life. For example: * Some insects are beneficial to farmers and gardeners since they eat other insects that are harmful to plants. One example is the ladybug; they eat aphids that can kill many plants. Some farmers have begun "going green" in raising their crops by bringing in the insects that eat the ones that harm plants. This allows them to raise crops with out harmful poisons. * Dragonflies eat mosquitoes, which we all know are harmful to both humans and animals.
Who are the 5 harmful insects and 5 useful insects?
Harmful insects include aphids, whiteflies (eat our crops), mosquitos (carry disease), fleas and lice (suck blood). However, the insects that eat our crops mostly only do so because we practise too much monoculture and kill off their predators with insecticide. The herbivores such as aphids and whiteflies reproduce fast enough to build up resistance, whereas their predators such as ladybugs do not. Useful insects include those ladybugs (eat aphids etc), parasitic wasps (kill many harmful insects), and bees (pollinate plants and make sure they can reproduce and bear fruit).
What are non harmful insects called?
they have no particular name,they are called non harmful insects
Why is it soap harmuful from insects?
Please try rewriting your question. Are you asking why soap is harmful to insects? Or are you asking why soap isn't harmful to insects?
Why does killing insects on crops increase crop yield?
the insects don't eat/ damage crops and it allows to kill insects carrying plant disease.
Do insects destroy crops?
Yes, some insects definitely do that.
Are grasshoppers good for a garden?
No! Cause they eat and destroy your grass:)!
