The major pests of upland rice attack seed and seedlings. Studies on major insect pests of rice crop journal of entomology. Pdf diversity of pest and nonpest insects in an organic. Insect pests of rainfed upland rice and their natural. Rice is one of the worlds most important foods, but its production suffers from insect pests, causing losses of billions of dollars, and extensive use of. Adults feed on rice leaves and lay their eggs underwater in rice stems. Pdf the major insect pests of rice crop encountered in northeastern part of the uttar pradesh are. The objective of the study was to provide basic information on the insect pest complex of rice in the area and their natural enemies. All wheat growing areas, especially in nwpz and peninsular india development. Major insect pests of rice the insect pests that cause serious and economic damage are commonly known as major or important insect pests of rice and these major insect pests are given below with detail of their scientific name, family name and order name. Economic and ecological perspectives of farmers on rice. Rice diseases and pests, description, uses, propagation. It is native to texas, but was accidentally introduced into california, as well as china, north and south korea, taiwan, japan and europe.
The following is a summary of the major insects that can be found in stored grains and legumes and a description of the biology, behavior, and ecology of each. Usually, the first sign of a problem is the appearance of small beetles crawling over counter tops, moths flying across rooms, or caterpillars crawling up walls or across ceilings. Khan 1994 icipe international centre of insect physiology and ecology the international rice. Common insect pests of rice and their natural biological control an illustrated guide to the insect pests that feed on rice plants and the organisms that feed on and control those pests. Insect pests of rice continued the fall armyworm is a sporadic pest of rice. Pdf insect pests of rice lalitha devi guvvala academia. Read about the avocado leaf roller pest and the damage it does to avocados, custard apples, coffee, tea and other crops in north queensland and learn how to control it.
Hence, farmers perception on rice insect pests and pesticide use was evaluated by selected 112 farmers composed of 77% males and 23% females, over the rice growing areas of north cotabato, central mindanao, philippines. Crop responses to climate warming suggest that yields will decrease as growingseason temperatures increase. Four economically important orders of insects were hemiptera, orthoptera, lepidoptera and coleoptera. Depending on the structure of the ecosystem in a given area and mans view point, a certain insect might or might not be considered a pest.
Rice has fed more people over a longer period than has any other crop, and is presently the source of one quarter of global per capita caloric intake. Regmi assistant professor department of entomology 2. Rice insect pests many insects inhabit rice fields, but only a few are considered to be pest species missouri is lucky insect problems are less severe than in other rice producing areas of the us most common pest rice water weevil others rice stink bug, grasshoppers rare armyworms, chinch bugs. In the rice pest management context the limits of this ecosystem may, however, be difficult to define. Insectresistant genetically modified rice in china. However, methods for predicting insect pest outbreaks are by no means perfect. Adults are dark brownish black 2 4mm long with a long weevil snout have four small light coloured patches on its rear wing covers rarely flies, but climbs vertical surfaces e.
Insect pests have been defined by williams 1947 as any insect in the wrong place. Insect traps tested as an aid to pest management in milled. Contents 1 introduction 2 a list of rice pests 3 rice pests calendar 4 insect pests of major importance in the rice field 5 insect pests of minor importance in the field 6 miscellaneous pests of rice in the field 7 insect pests of rice in storage 8 control of insect pests of rice in storage 9 natural enemies of rice pests 10 control. Pedigo and rice expertly combine basic and applied entomology in this readerfriendly, pedagogically rich text. An ipm practice in rice production initiatives includes regular pest monitoring, research on the optimal use. Common insect pests of rice and their natural biological control. Information on the banana aphid insect pest which can spread banana bunchy top virus bbtv.
The authors models show that for the three most important grain cropswheat, rice, and maizeyield lost to insects will. The lynx insecticide has been used to test the effect on insect pests of rice and was sprayed every fifteen days in the plots of rice which will receive this treatment processed rice. The insect fauna of rainfed rice, oryza sativa, was assessed using the sweep net and direct count methods. Insect pests of rice books international rice research institute. Insect pests of field crops and their management department of. We are a local and familyowned pest removal company and care about our reputation. Other ways to encourage natural pest enemies are to allow plants on the bunds and between fields to flower yellow and white flowers attract natural enemies. This situat ion has risen mainly due to elimination of natural enemies, resurgence of pests, developm ent of insecticide. Occasionally the grain borer infests brown especially when it is packaged in paper bags or cardboard cartons. Knowledge of insect biology is necessary for integrated pest management programs.
Natural insect enemies of the rice pests are also killed when pesticides are applied and this can lead to an outbreak of other rice insect pests. Several new methods of propagating rice have been developed which allow rice to be cultivated in less conventional areas e. The rice water weevil is the most serious pest of rice in the us. A study was carried out on the major insect pest incidence on fine rice short cylinder most popular from private company in these.
The adult is a moth which lays its eggs in masses on rice leaves. Journal common insect pests of rice and their natural. The rapid spread takes place through asexual reproduction where females give rise directly to. Peshin r, dhawan ak eds inte grated pest management. Stored grain insect pests granary weevil sitophilus granarius l. Stored product or pantry pests include several beetles, moths, and a mite that can infest whole grains or processed foods. An illustrated guide to the insect pests that feed on rice plants and the organisms that feed on and control those pests. The recommended control of insect pests is to develop and follow an integrated pest management plan. These estimates might then be used to predict the optimum timing for pest control measures.
Sitobion avenae, rhopalosiphum padi and various other species. Eight sampling visits were made starting from the planting of seedlings until flowering stage, milky stage and ripening of the grains. The prevention of pest induced food crop losses at pre and. Az list of horticultural insect pests department of. Identification of major insect pests of paddy and their damage symptoms dr.
There are over 100 species of insect pests to rice around the world but only about 20 species can cause economic damage. Ooi about 187 species of insects have been recorded on rice yunus and ho,1980, but few have ever become serious pests. In general, insect pests of rice are divided into two groups. Rice, oryza sativa is the most important and staple food crop for more than two third of the population of india and more than 65 % of the world population. A survey of rice insect pests was conducted in rice fields of chittagong, bangladesh during three growing seasons, boro, aus and aman. Eggs hatch and the larvae complete four to six instars stages of growth before pupating in a cocoon in the soil. How to download pdf books full guide course outline. Rice is considered to be a semiaquatic annual grass and is commonly grown in paddies in wetlands or under shallow water. Insect diversity studies were conducted in paddy plots planted organically under sri in lubok china, melaka.
The role of biodiversity in the dynamics and management of. Polyphagous insects, and those of minor importance, are not described. Insects already consume 5 to 20% of major grain crops. The rise and demise of integrated pest management in rice. Storedproduct insects a range of storedproduct insect species are found associated with rice facilities different community can be found in different areas of a facility immigration from outside can contribute to pest. Stem borers scirpophaga incertulas gall midge orseolia oryzea brown plant hopper nilaparvata lugens whitebacked plant hoper sogatella furcifera green leaf hopper nephotettix virescens leaf folder cnaphalocrocis medinalis case worm nymphula depunctalis gundhi bug leptocorisa acuta mealy bug brevenia rehi swarming caterpiller. Rice grain losses caused by pest damage contribute to rural poverty and food insecurity in africa. Assuming only a background in elementary biology, the authors present the major elements of general entomology before moving on to concepts in insect biology and ecology necessary for understanding insect pest management. Rice insect pest complex and damage acrossthericegrowingregionsinchina,there are more than 200 species of insect pests that damage different life stages and different parts of rice 23, 52. Various insect traps were tested in a milled rice store, in indonesia, with a view to developing an insect trapping method that would enable estimates of insect populations to be obtained reliably and easily. The world rice crop is attacked by more than 100 species of insects. Laceration of the tender leaves and suck the plant sap. Rice ipm provides a framework for integrating knowledge, skills and information on rice pest management.