We think of insects as being pests in the garden, but only the insects that feed on our plants or transmit disease are pests. Many insects are useful and are called "beneficial." There are three main groups of beneficial insects: pollinators, predators, and parasitoids.
Pollinators include several bee and fly species, and the ones that we're most familiar with are honeybees, bumblebees, orchard mason bees, and syrphid flies.
Predatory insects eat large numbers of other insects. These predaceous insects can feed on other insects when they are larvae, adults or both. Common predators that we see often in the garden are lady beetles (we call them lady bugs), praying mantids, Spiders and centipedes.
Parasitoids are insects that live on or in a host insect. They feed on the host and usually kill it in the process. Most are stingless wasps or flies that lay their eggs in a specific host. The eggs then hatch and feed on the host. This is a process that is difficult to see, but research shows that parasitoids contribute to the control of pests.
beneficial insects mean that they are good
Flies. They help get rid of dead animals etc
Bees. They make nice honey.
certain spiders like red backs and tarantulas
deadly snakes
they have no particular name,they are called non harmful 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?
Bedbugs and fleas are harmful because they are insects.
Because insects bite and are sometimes harmful to Humans!
Insects are harmful to crops because they can be carrying dirty kinds of bacteria, and they can cause diseases in plants and kill plants.
They do not
In many areas, grasshoppers are considered harmful insects. They have the ability to devastate large areas of crops and other important plants.
Insects must be controlled because they can over populate. Some can be quite harmful to humans and others are just plain pests.
That would be called biological control of 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.
Some benefits of insects are: pollination of plants by some insects, some beneficial insects eat other, harmful insects.
Insects harm trees by leaving their harmful bacteria which can spoil tree's branch or leaves and some insects are also capable in making whole into the tree's branch.Some insects like termite can spoil trees by eating their wooden branches.