because they eat plants
It 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.
Lots 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.
That 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.
That 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.
they dislike certain insects because they can damage crops and can be a real pain to get rid of.
Many 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.
Bees pollinate crops and make honey.
earthworms
A Preymantis.
Probably the wings. Also its six legs and jointed body.
Mantis
No, it is acually very helpful.
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.
a xylophone is not an insect, its a instrument
nhelp insect
That buzzing, flying insect could be:BeeMosquitoGnatHorseflyHouseflyFruit flyOr many other flying insects.Hope this was helpful!
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.
He was bitten by a spider, and a spider is not an insect, it's an athropod.
A Preymantis.
Bacillus thuringiensis. It allows the plants to produce a natural insect repellnt.
Silk Worm
No
Probably the wings. Also its six legs and jointed body.
Mantis
AH! i love pointless questions like these!!! he is helpful man