الفهرس | Only 14 pages are availabe for public view |
Abstract Legumes are eharacterized by the high protein content and nutritive value of their seeds in addition to the roots possessing nodules containing rhizobia that are capable of fixing n1trogen. The work in thi s Thesi s carried out in the Experimental farm, Sids region, Beni-Suef’ Governorate. during the two successive seasons of 1984/85 and 1985/S6 included stUdies on the insects associated with five leguminous crops; broad bean, fenugreek, chickpea, lentil and lupin. Results could be divided into 4 main parts and may be summarized as follows : I. Survey studies: By early December 1984, quarter monthly samples were obtained by 30 double strokes of an insect sweeping net and manual inspection of five plants/plot. Sampling took place until May, 10th. The cs,pturedlnsects were killed, identified and counted. The survey of insects revealed the presence of 85 species belonging to 34 families and 9 orders. 1.1. Paba bean insects: A :number of ’16 species belonging to 34 families and 8 orders were surveyed on taba bean plants. Twelve of these species were found as toliage feeders. 12 sap suckers, 2 leaf-miners, 5 ted on seede, 13, predators and Z 12 paras! tes. Surveyed insect species included also the bee honey and 2 other pollinators. In addition to these species,l’” species were also surveyed, but they were found in very low numbers. 1.2. Fenugreek insec~s : A total of 59 insect species belonging to 32 fami1iee and 9 orders were surveyed on fenugreek plants. Fromthese species 7 species were found as foliage feeders, 10 fed I on the plant sap, 2 lest miners, 4. fed on seeds, 10 insect predators and 1.2were found as insect parseil-es. In . addition to these species, 13 were also surveyed, but individuals of these species were found of very low occurrence. I.). Chickpea insects: Fifty- two insect species belonging to 26 families fron: 9 orders could be surveyed on ch1ek~ea plants. These insect species included 1’- pest species of which» were found as toliage feeders. 7 ted on the plant sap, ) fed on the seeds, and 2 were .found as leat-m1~rs. The beneficial. insect species surveyed on chickpea Iplants included 2 , pollinators, and t predaceous and 9 I parasitic insect ! species. Besides, 16 insect speCier were surveyed, but in very low numbers on chickpea plants. Those includeO 4 lepidopteran,_6 ~pt.~, ._~eteropteran :an4 2 coleopteran 108ect81.4. Lentil insects: A total number of 51 insect species belonging to 27 families from 9 orders could be ’surveyed trom lentil fields. from these spacies~21 were found as pests on len~il plants. Those included 6 species that fed on the plant foliage, 11 sap Buckers, 2 leaf-miners and 2 red on the/crop seeds. Nine insect predators and 8 parasitic species were also surveyed on lentil plants, while ’3 speciel were surveyed as pollinators. Beside to these species, other 10 insect species were found in very low num~ers. Those included 2 heteropterous.6 homopterous, aud two lepiuopte~~u8 8peci~8~ 1.5. Lupin insects : Fourty- :tour insect species belonging to 22 families and 8 orders could be surveyed on lupin plants throughout the two successive seasons 1984/85 aI),d 1985/86. These species inclUded I 5 pest species of .hieh) were foliage feeders, 10 sap suckers and 2 fed on the seeds. On the other hand, benefieial insects inc1uQed 10 predators, 5 parasites and 3 pollinators. In addition to these species, other 11 insect species could be surveyed but in very low • numbers. from these species, 3 belonged to Heteroptera and 6 to Homoptera, in addition to one lepidopteran, one coleopterap and two dipteran species. |