INSECTS AND CROPS

Insects and Crops

Insects and Crops

Introduction

Insects, good bugs and bad bugs balance each other and a man can controls them with pesticides. It is commonly said that mostly chemicals affect the crops and are they killing the good bugs with the bad ones and their effects are diverse in nature (Hough, 1998). Pesticides are chemicals or biological agents (such as viruses or bacteria) used to control or eliminate pests. Pests can be anything that disturbs human life, agriculture, horticulture, or domestic animals. Pests are most often insects, but they may be bacteria, fungi, weeds, unwanted fish, rodents, nematodes (roundworms), deer, or rabbits. Pests may be native to a local environment or invasive species. Pesticides are often classified according to the type of pest they are designed to control or eliminate. Insects can be found in almost every corner of the world, from the frigid conditions of Polar Regions or the highest mountains, to scorched deserts and steamy rainforests. Therefore, this study clearly highlights that not all bugs are bad, and good bugs eat bad bugs. Getting to know the bugs in any crop will help us to identify the true facts.

Overview

In recent years, chemists have characterized an increasing number of insect pheromones pheromones, any of a variety of substances, secreted by many animal species, that alter the behavior of individuals of the same species. Sex attractant pheromones, secreted by a male or female to attract the opposite sex, are widespread among insects chemical attractants that bugs use to find each other. Already many are used commercially to lure pests to a trap or to confuse pests by attracting them to a bait rather than a mate. In fact, note Jeffrey R. Aldrich and his colleagues at the Agriculture Department's Insect and Nematode nematode or roundworm.

Any of more than 15,000 named and many more unnamed species of worms in the class Nematoda (phylum Aschelminthes). Nematodes include plant and animal parasites and free-living forms found in soil, freshwater, saltwater, and even vinegar Hormone Laboratory in Beltsville, Md., of the more than 200 insect pheromones that have been identified, all but two have been for pests.

Until now. Aldrich's team has begun focusing on identifying and synthesizing the lures for an entirely different class of bugs those that feed on pests. Baits containing these predator pheromones can be used to draw in beneficial insects Beneficial Insects are any of a number of species of ...