Best Answer

Harmful arthropods: 1: Mosquitoes are a harmful arthropod. Mosquitoes can cause yellow fever, filariasis, and malaria. 2: Fleas are also a type of harmful arthropod. The bites from fleas transferred the disease-causing bacteria for the Bubonic Plague. 3: Ticks are another type of harmful arthropod. Rocky Mountain spotted fever is characterized by a significant hemorrhagic rash and is caused by rickettsial organisms. The infection is transmitted by ticks. Beneficial arthropods: 1: Spiders are very beneficial arthropods. Spiders are beneficial to man by killing harmful insects. There are very few spider species that actually have venom that are poisonous to man. 2: Crabs are also a type of beneficial arthropod. We cook and eat crabs so we have enough energy and nutrient to live. 3: Lady Bugs are another type of beneficial arthropod. They are used to control aphids for gardens and farms.

User Avatar

Wiki User

14y ago
This answer is:
User Avatar
More answers
User Avatar

Wiki User

8y ago

Ladybugs are useful insects because they eat aphids which kill your roses and other flowers. Honeybees are useful because they pollinate plants and provide honey.

Harmful bugs are emerald ash borers because they kill ash trees; tomato hormworms because they eat your vegetables; and Japanese beetles which attack your garden.

This answer is:
User Avatar

User Avatar

Wiki User

10y ago

Arthropoda are both beneficial and harmful. Without them we'd likely starve to death pretty fast; about four fifths of the world's flowering plants require some kind of assistance to pollinate and the bulk of the pollinators are insects, so that translates to a lot of fruits and vegetables. We also seek out and harvest them directly for food; crabs, lobsters, etc. Krill have a huge biomass and form a very important part of the food chain, essentially capturing energy from plankton for predators, squid, fish (and humans).

On the other hand, arthropods (particularly insects) can be parasitic, or consume and destroy crops, and are vectors for disease: mosquitoes in particular carry yellow fever, malaria and other diseases which contributes to a huge death toll amongst humans and livestock and arguably make them the most dangerous animals on the planet.

This answer is:
User Avatar

User Avatar

Wiki User

13y ago

three harmful arthropds are mosquitoes, fleas, and ticks. these are harmful because they carry diseases that are harmful and deadly to us.

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What are some harmful and useful insects?
Write your answer...
Still have questions?
magnify glass
Related questions

How are birds useful in gardens?

By destroying large numbers of harmful insects.

You cook some chips in the oven useful or harmful?

i think its both harmful and useful

What are some benefits of insets?

Some benefits of insects are: pollination of plants by some insects, some beneficial insects eat other, harmful insects.

How is cobalt-60 radiation useful in preseving fresh fruits and vegetables?

Gamma radiation destroy harmful microorganisms and insects.

Are lions harmful or useful?

lion are useful and harmful

Is a ameoba harmful or useful?

It is not harmful. Also it is not useful

Are bacterias useful or harmful?

There are different types. Some are, some arent

What insects does chlordane control?

Chlordane is harmful to many different insects. Some of the insects that this will kill include bees, wasps, hornets, and dragonflies.

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

What are Useful and Harmful Changes?

The changes talking place in our surroundings and which are useful to us are called Useful changes. The changes which are not useful but harmful are called Harmful changes

Is a butterfly useful or harmful?