Insect pest are most talented in feeding almost all sorts of living organisms. The insects are capable of destroying crop plants, stocked food, fruit plants and residential property. The pests can lead to many health issues to man and animals. They are classified depending on the host they pests breed upon

Household Pests:
The wide environment around us seems to be very attractive to pests such as industrial complexes, lawns, flowers, parks, shrubs and houses. Pests that damage residential property are usually referred to as household pests. Household Pests are main concern to man, his belongings and his immediate surroundings.
Pests such as cockroaches, silver fish, weevils, ants, houseflies, crickets and fruit flies, etc. which pollute edible food and ruin it or spreads diseases are usually comes under this category. The insects like bed bugs,carpet beetle, cloth moths and furniture beetles cause damage to human-belongings this as well fit in the category of household pests. Therefore, all kinds of insect which are unnecessary guests to our houses which is the main reason for damage to human belongings and his wellbeing are called as household pests.

Veterinary pest

The insects which attack domestic animals such as horses, chicken, cattle, etc and other blood sucking insects such as lice, bugs, fleas, stable flies, mosquitoes are some of the examples of domestic animal pests. Biting lice such as Mallophage brings about irritation and loss of fleshy tissue in poultry farms. Horn flies, Tabanid flies suck the blood from farm animals to horses. Both flies can lead to severe stomach disturbances in horses. Grubs of ox warble flies leads to loss of flesh in cattle and can cause harm to the leather by creating holes in the skin.

Tabani flies

Structural Pests:
Structural pests are those destructive insects which cause damage to
furniture’s, fencing posts, wooden frames, doors, library books, stored
papers, cardboards and parts of buildings are named as structural pests.
The termites are social insects and colonial, grows on cellulose which means it damages wooden objects in uneven form. Silver fishes feed on ghee and starch material, therefore damaging book bindings, photographs, wall papers and all kinds of adhesive labels. Cloth moths and carpet beetles can also be attack carpets, cloths as structural pests.

Storage Grain Pests:
The storage of food grains has been a long custom among the farmers and merchants. A significant loss both in quality and quantity of food grains happens in storage area due to several factors. Creatures like insects, rodents, bacteria, mites and fungi are directly blamed for causing damage in accumulated products.
The stored food fruits, nuts, grains, seeds, etc. are contaminated due to internal borer insects in the godowns and warehouses are most harmful of all insects. The borers can damage crops, even during the harvesting time in the farm ground itself. The moths, Red rust flour beetle, grain weevils cause a main damage to stored cereals (barley, wheat, rice,  corn, oat, millets, etc.) and pulses (beans, gram, lentils, peas, etc.) correspondingly. Mostly the pests ruin the stored food grains and make them unhealthy for human consumption, sowing. The stored grain pest can be distinguished into two kinds such as :
(i) Primary type: This group of pest’s attacks to whole grains in an uncrushed state.
(ii) Secondary type: this group of pests feed or damages the crushed or broken grains.

Agricultural Crop Pests:
Most of the agricultural crops are infected by number of pests that lead to severe harm. Pest represents many numbers of insects attacking the different crop plants. The main crops such as cotton, sugarcane, jowar, wheat, bajara, etc. are spoiled by pests like stem shoot fly, borer, armyworms, aphids, leafhoppers mites, flea beetles, jowar midge fly, etc. The semiloopers, potato beetles, cabbage worm has chewing kind of mouth parts. They chew up and swallow the outside parts of the plants. Whereas some insects like blister beetle feed on pollens, etc. therefore causing severe harm.

Forestry pest:

Forestry pest go into into the plant and lead to deformations in the structures like stem borers pierces stem causing burrowing inside and enlarging. Leaf cutters and leaf rollers leads to harmful deforestation. Gall insects leads to enlarging, bark feeder damages surface of stem. Example Bark beetle damages the timber in the forest; the termites destroy the timber logs even after parting the forest. The sap suckers such as aphids, plant bugs and Thrips absorb plant juice in nursery plants which slows down the photosynthetic activity.

Thrips