Broad bean weevil infestations also start in the field, but this pest is not a storage problem. Rice is the staple food of over half the world's population and occupies almost one-fifth of the global cropland under cereals. Adults cut exit holes to emerge. The rice root weevil, Echinocnemus oryzae Marshall, (Coleoptera: Curculionidae) has posed a problem in paddy cultivation areas in India. They reduce the quality of crop produce. The pine weevil, Hylobius abietis L., is a pest of economic importance causing massive damage to conifer seedlings planted on reforestation sites. The weevil mainly feeds on aquatic and semiaquatic plants in the family Poaceae and Cyperaceae (Tindall and Stout 2003, Lupi et al. Many grain pests preferentially eat out grain embryos, thereby reducing the protein content of feed grain and lowering the percentage of seeds which germinate. No need to register, buy now! Bean weevil infestations can also start in the field and may also originate from trash beans. repellent effects of certain plant extracts against rice weevil, sitophilus oryzae l. (coleoptera: CURCULIONIDAE) Mumtaz Akhtar, Muhammad Arshad, Abu … The rice water weevil is a semiaquatic beetle that is well-adapted to life in water. 2009). Note: Cereals include crops like rice, maize or corn, Barley, millet, sorghum and oats. BIOLOGY AND MANAGEMENT OF RICE WEEVIL, Sitophilus oryzae L. IN POP SORGHUM Thesis Submitted to the University of Agricultural Sciences, Dharwad in … Huge collection, amazing choice, 100+ million high quality, affordable RF and RM images. They make fruits and vegetables unattractive thus reducing their sales value. Rice water weevil belongs to the family Curculionidae in the order Coleoptera. Please read more on Agricultural Pest (with Tabular illustration) here. Economic importance / Effects of crop pest. Eggs, larvae, and pupae live inside the kernels and are rarely seen. Find the perfect rice pest damage stock photo. The damage by this root weevil results in a significant decrease in root and shoot biomass and ultimately the yield of rice plants. As with the cowpea weevil, bean weevil will attack dried beans and can be a serious pest in stored beans. In addition, grain which is not lost is severely reduced in quality by insect damage. Rice weevil Classification Order: Coleoptera Development Holometabola Ecological role Scavenger: Economic importance Larvae feed within the kernel of whole grains including wheat, corn, oats, barley, sorghum, and macaroni in grain storage facilities or processing plants. Some important stored grain pests include the lesser grain borer, rice weevil and rust red flour beetle.