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because they eat plants
Wiki User
∙ 10y ago
Wiki User
∙ 9y agoIt is by feeding upon plant parts and vectoring diseases that insects hurt farmed crops. For example, insects will be deemed pests when they damage a crop's flowers, foliage, roots, and stems; encourage the presence of bacteria, fungi or viruses; or remove an edible's or ornamental's internal life-sustaining saps.
Wiki User
∙ 14y agoLots of insects are helpful to man but one example is the maggot. These creatures help the humans by eating off their dead flesh. Yeah, sounds disgusting but they do. Here's how:
When humans have what we call "Gangrene" they use maggots to eat up the dead flesh, for maggots eat rotting or dead things. but be careful, because if you don't remove them in a couple of hours, they then become flies. Oh yeah, you'll end up walking around with flies inside of you................ which after a period of time, I might add, will kill you. So if you're using maggots for this particular purpose, remember to remove them as soon as possible.
Wiki User
∙ 9y agoThat they attract ants; destroy the appearance, health, and value of crops; leave sticky, unattractive sooty mildew; and transmit viruses are reasons why aphids are considered pests by farmers. Aphids (Aphidoidea superfamily) encourage formic presences by secreting honeydew, promote ill-health by vectoring viruses, and ravage edibles by draining a plant's sap.
Wiki User
∙ 6y agoThat they attract ants, destroy the appearance, health and value of crops, leave sticky, unattractive sooty mildew and transmit viruses are reasons why aphids are considered pests by farmers. Aphids (Aphidoidea superfamily) encourage formic (ant) presences by secreting honeydew in exchange for protection from predators. They promote ill-health by vectoring viruses and ravage edibles by draining a plant's sap and leaving unmarketable after-effects.
Wiki User
∙ 10y agothey dislike certain insects because they can damage crops and can be a real pain to get rid of.
Wiki User
∙ 9y agoMany insects help humans including bees. Bees pollinate plants that are used as food for humans. Other insects that help humans include the assassin bug, the damsel bug, and the earwig.
Wiki User
∙ 14y agoBees pollinate crops and make honey.
Wiki User
∙ 14y agoearthworms
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What is a man hunt for a large insect?
A Preymantis.
Which part of the bumblebee is most helpful in identifying it as an insect?
Probably the wings. Also its six legs and jointed body.
What word means a large insect and has the word man in it?
Mantis
Is yak harmful to man?
No, it is acually very helpful.
What is the tiniest insect?
There are well over 1,000 species of the fairyfly. At just 0.139 mm long, they are the smallest insect known to man, and at just 0.15 mm in length, they are the smallest known flying insect. In some areas they are called fairy wasps.
Is a xylophone a helpful or harmful insect?
a xylophone is not an insect, its a instrument
How is the brightness of the goldrod helpful to insects?
nhelp insect
Buzy flying insect?
That buzzing, flying insect could be:BeeMosquitoGnatHorseflyHouseflyFruit flyOr many other flying insects.Hope this was helpful!
How is a praying mantis helpful to humans?
They are good for insect control, they are helpful in classrooms to teach about insect life cycles and some even say they bring you good luck if you see one. They also make sweet, noiseless pets.
What kind of insect was Spider-Man bitten by?
He was bitten by a spider, and a spider is not an insect, it's an athropod.
What is a man hunt for a large insect?
A Preymantis.
What bacteria is helpful to farmers?
Bacillus thuringiensis. It allows the plants to produce a natural insect repellnt.
Which insect was first domesticated by a man?
Silk Worm
Are orca whales helpful to man?
No
Which part of the bumblebee is most helpful in identifying it as an insect?
Probably the wings. Also its six legs and jointed body.
What word means a large insect and has the word man in it?
Mantis
Is a Wolverine helpful or harmful?
AH! i love pointless questions like these!!! he is helpful man
