Vol. 3, Special Issue 3, Part J (2017)

Abstract

Spiders are among the most abundant insectivorous predators of Terrestrial ecosystem. Spiders are one of the most diverse animal groups in the World. Spiders are carnivorous creature. Spider plays an important role in regulating insect pests in the Agricultural Ecosystem. They mostly feed on insects, even though they may also feed on various other kinds of prey. Spider’s predatory capacity can have an effect in decreasing densities of insect pests, when they are used to balance the effect of insecticides and Pesticides. If pesticides are avoided, spiders can invariably take shelter in the fields, feed on the pests and increase the productivity.

The constant use of a wide range of pesticides has caused many side effects, like loss of biodiversity, the problem of secondary pests, insecticide resistance, residual toxicity, the recovery of insect pests and Environmental Pollution. Spiders consume a large number of small creatures and do not injure vegetation. Predatory arachnids such as Spiders are important biological control agents. During the present study I have reported 94 Species belonging to 19 Families and 53 Genera of Spiders in Orange fields of Chandur Bazar Tahsil, District Amravati, Maharashtra State. Spiders of Families Araneidae, Clubionidae, Corinnidae, Eresidae, Gnaphosidae, Hersilidae, Linyphiidae, Lycosidae, Miturgidae, Oxyopidae, Philodromidae, Pholsidae, Salticidae, Scytodidae, Sparassidae, Tetragnathidae, Theridiidae, Thomisidae, Uloboridae were recorded during the investigation.

Some spiders are among the most effective predators of leafhoppers, caterpillars, and other pests. Aphids are rarely important pests of Oranges. Some Spiders and Spider lings are main control agents of aphids. Due to destroying the pest or insects, spiders are friends of farmer. Spiders are important Pests control agents.

Spiders are beneficial to human beings in the sense that they feed not only on the pests of agro ecosystem but also the pest of man such as cockroaches, flies, Mosquitoes. In households, a particular spider as the giant crab spider has been known as an effective in controlling cockroaches and other insect pests found in the domestic environment. Predatory arachnids such as spiders are an important group of biological control agents