Pest of human beings a.Medical Entomology 3. In particular, we discuss research on the use of pheromones for the monitoring and management of weevil pests. In the last few decades there has been an ever-increasing component in most BSc Zoology degree courses of cell biology, physiology and genetics, for spectacular developments have taken place in these fields. b. Introduction. Some aspects of biotechnology are now also being included. In this chapter, the uses of insect pheromones in integrated pest management are discussed. Importance of Insects to the environment: a. Pollination: Like in agriculture, insects help in the cross-pollination of plants in the environment. Thus they consume them and clear of any waste matter from the environment. The Economic Importance of Insects Dennis S. Hill No preview available - 2012. Top borer of sugarcane The scientific name of top borer of sugarcane is Scirpophaga novella (Fabricius) with family Pyralidae and belonging to order Lepideoptera. You can read on Roles of Government in Agriculture here. They cause reduction in the viability of stored produce. Scavengers: Many insects eat up or carry away dead and decaying matter. Ex: ants take away and feed on dead insects, larva, lizards, etc. Economic Importance of Insect Pest. The Economic Importance of Insects Dennis S Hill No preview available - 1996. An animal can also be a pest when it causes damage to a wild ecosystem or carries germs. Some insects can constitute a major threat to entire countries or a group of nations. Importance of Insects to the environment: a. Pollination: Like in agriculture, insects help in the cross-pollination of plants in the environment. Depending on the structure of the ecosystem in a given area and man's view point, a certain insect might or might not be considered a pest. Insects of economic importance A. Injurious insects a) Pests of cultivated plants (Crop pests) Each cultivated plant harbors many insects pests which feed on them reduce the yield of the3 crop. The importance of natural enemies for pest control has been appreciated for over a thou-sand years (112), but only relatively recently have scientists and practitioners attempted to assign economic value to BC (29). This is understandable, as the concepts are closely related and the definitions of EIL and ET can be expressed differently depending on context. Entomophagous insects are those insects which feed on other insects destroying our crops and stored grains. It is due to the activities of entomophagous insects that many harmful insect pests have been kept under check under natural conditions. A pest is an organism with characteristics that people see as damaging or unwanted, as it harms agriculture through feeding on crops or parasitizing livestock. Scavengers: Many insects eat up or carry away dead and decaying matter. The term pest is used to refer specifically to harmful animals but it also relates to all other harmful … Such entomophagous insects are either parasitoids (a parasitoid is usually much smaller than its host and a single individual usually does not kill the host) or predators (a predator is usually larger than its prey, kills its prey and requires more than one prey to complete its development). Insect classification (based on economic importance) INSECT Economically important Economically not important Injurious Beneficial Helpful 1. b. Common terms and phrases. Pests of Crops and Animals: The greatest importance of insects lies in their being pests of crops and animals and as carriers of diseases. 6. * Integrated Pest Management (IPM) means the careful consideration of all available pest control techniques and subsequent integration of appropriate measures that discourage the development of pest populations and keep pesticides and other interventions to levels that are Although the economic injury level (EIL) and the economic threshold (ET) are fundamental integrated pest management (IPM) concepts, they are often confused. Insects which constitute 70-90% of all animals present in this world came into existence 250- 500 million years ago. 2. The list of major (that cause economic damage to this crop) insects pests of sugarcane are given below, 1. Some are vectors of diseases. In this lesson, we'll be learning about some of the most common animals in the world: insects. Pests of crops and Plants a.Agricultural Entomology b.Forest Entomology c.Storage Entomology 2.