~ 1745 ~ Journal of Pharmacognosy and Phytochemistry 2018; SP1: 1745-1749 E-ISSN: 2278-4136 P-ISSN: 2349-8234 JPP 2018; SP1: 1745-1749 Ajay Kumar Department of Entomology, College of Agriculture, Swami Keshwanand Rajasthan Agricultural University, Bikaner (Rajasthan), India Veer Singh Department of Entomology, College of Agriculture, Swami Keshwanand Rajasthan Agricultural University, Bikaner (Rajasthan), India Hem Singh Asstt. Prof., Deptt. of Entomology, S.V.B. Patel Uni. of Ag. & Tech., Meerut, India Abhishek Yadav Department of Entomology, College of Agriculture, Swami Keshwanand Rajasthan Agricultural University, Bikaner (Rajasthan), India Correspondence Hem Singh Asstt. Prof., Deptt. of Entomology, S.V.B. Patel Uni. of Ag. & Tech., Meerut, India Effect of organic amendments on termite population and yield of wheat in arid eco-system of Rajasthan Ajay Kumar, Veer Singh, Hem Singh and Abhishek Yadav Abstract The research experiment was conducted at Research Farm of College of Agriculture, Swami Keshwanand Rajasthan Agricultural University, Bikaner (Rajasthan) during rabi 2013-14. Eight organic amendments viz., Bone meal, cotton cake, mustard cake, groundnut cake, neem cake, FYM, Vermi- compost and poultry manure were tested against termites in wheat as soil application at the time of land preparation before sowing. All the organic amendment treatments were found significantly superior to control till 15 week after sowing.The application of neem cake as organic amendments resulted the lowest 2.75 per cent plant damage and found significantly superior in managing the termite infestation in wheat crop over all the evaluated organic amendments except bone meal (3.66%) and vermi-compost (3.97%). The plots treated with cotton cake (6.02%), were not equally effective as neem cake and found at par with poultry manure (6.10%).Out of these evaluated organic amendments, the highest (9.76%) damaged plants were observed in plots treated with FYM and it was at par with groundnut cake (9.74%) treated plots. the application of neem cake, bone meal and vermi-compost @ 1 tonne/ha were found highly effective against termite in wheat as organic amendments. The maximum (4210 kg ha -1 ) grain yield was obtained from the plots treated with neem cake and it was at par with bone meal (3852 kg ha -1 ) and vermi-compost (3728kg ha -1 ). Keywords: Bioefficacy, Newer Insecticides, Helicoverpa armigera, Chickpea Introduction Wheat [Triticumaestivum (Linnaeus) Em. Thell] belongs to family Gramineae, believed to have originated from South West Asia. It is most important cereal cultivated crop in temperate area of the world. Wheat is second important staple food crop after rice. Its value in human diet, both as a source of carbohydrates and protein and its baking qualities make it relatively more important crop than other cereal grains. Wheat flour is used in the form of chapatti, puri, bread, cake, sweetmeats, halwa, etc. It provides characteristic substance “Gluten” which is very essential for bakers.Wheat straw is also used in paper industries and for making temporary huts and roof. The bran, husk and other portion of grain and straw are valuable feed for livestock as well as good source of bedding material for livestock. The ripe unthreshingearheads are used to decorate items. It provides 20 per cent of total calories for human. Wheat grain contains 12.2 per cent protein, which is more than other cereals. Wheat is one of the leading cereal crop which have provided daily sustenance for a large proportion of the world’s population for millennia. There are many biotic constraints that hamper wheat production of which infestation of insect pests is major one. Wheat crop is attacked by 24 species of insect pests (Singh, 1998). Major insect pests of wheat are termite, Odontotermesobesus (Rambur), gujhia weevil, Tanymecusindicus (Faust), cutworm, Agrotisipsylon (Hufnagel), brown wheat mite, Petrobia lateens (Muller), armyworm, Mythimnaseparata (Walker), thrips, Anapothripsflavicinctus (Karny), aphids, Macrosiphumgranarium (Kirby), shoot fly, Antherigonasoccata (Rondani), stem borer, Sesamiainferens (Walker), surface grasshopper, Atractomorphacrenulata (Fabrikins), desert locust, Schistocercagregaria (Forkall), stink bug, Aeliaeostrata (Boheman), cereal leaf beetle, Oulemamelanopa (Linnaeus), hessian fly, Mayetiola destructor (Say), wheat stem maggot, Meromyzeamericana (Fitch), sawfly, Cephuscinctus (Nort), white grub, Holotrichiaconsanguinea (Blanch), wireworm, Agroitesmancus (Say), cricket, Gryllodessigillatus, (Linnaeus) and stalk borer, Chiloauricilius (Dudgeon). Over and above these insect pests damaging the wheat crop, the non insectpestsmollusca, slugs, Derocerasreticulatum (Muller) and snails, Cepaeahortensis (Muller) also damage the crop.Mehta and Verma (1968) calculated the loss due to termite up to 230 million rupees for all the agricultural crops. The work on different aspect in relation to termite in wheat is lacking in the arid ecosystem of Rajasthan. Hence, the present investigations were carried out.