Dhiman S.C.,Entomology Research Laboratory |
Kumar D.,P.A. College |
Malik V.,P.A. College
Plant Archives | Year: 2012
Pauropsylla tuberculata Crawford (Homoptera : Psyllidae) is a serious pest of Alstonia scholaris trees in district Saharanpur (U.P.), India and adjacent areas. It produces countless galls on leaves and tender twigs of host plant, Alstonia and usually, entire plant turns gallinaceous. Ma×imum gall formation has been observed during August to October at an average temperature 27±300C and R.H. 72±5%, while minimum galls during March to June at an average temperature 37±30C and R.H. 55±5%. Minimum 1 gall and Ma×imum 151 galls were counted on a leaf. From last week of November to the last week of February no new gall formation observed.
Kumar P.,Entomology Research Laboratory |
Rana K.S.,Entomology Research Laboratory
Asian Journal of Microbiology, Biotechnology and Environmental Sciences | Year: 2013
Some crops (i.e. Sugarcane, Paddy etc) play a pivotal role in economic status of the country. Sugarcane (Saccharum officinarum L.) is a high valued cash crop of India. It is a chief producer of sugar sugary products. In India, the yield of sugarcane is very low in the comparison of many other sugarcane producing countries. Many climatic conditions (i.e.-extreme hot summer, excessive rainfall, cold and frosty winter season), diseases, viruses etc. are major causes to declined sugarcane production. In spite of these factors, in different parts of India, sugarcane crop is also infested by over two hundreds number of insect pests i.e. borers, sucking, leaf eating type etc. in which sugarcane borers are heavy destroyer of sugarcane in country. Among them, sugarcane top borer Tryporyza nivella (Fab.) is one of the main causes of declined cane yield. During heavy destruction, the larvae (caterpillar) of this pest destroy the newly growing leaves resulting heavy quantity of sucrose is declined in the plant. Therefore, it is necessary to study the control of this pest infestation on its primary host sugarcane plant because through control of this pest the yield of sugarcane may increase. So, in the present investigations, the author has tried to search the better control method of T. nivella during research on the selected sugarcane field. © Global Science Publications.
Siliwal M.,Wildlife Information Liaison Development Society |
Kananbala A.,Entomology Research Laboratory |
Bhubaneshwari M.,Entomology Research Laboratory |
Raven R.,Queensland Museum
Journal of Arachnology | Year: 2015
Two new species of the genus Conothele Thorell 1878 of the trapdoor spider family Ctenizidae are described from India: Conothele giganticus, sp. nov. is described from the Ngengpui Wildlife Sanctuary, Mizoram in northeast India and C. khunthokhanbi sp. nov. is described from Manipur in northeast India. Like other known Indian Conothele species, these spiders are also strictly ground burrowing. Additional information on habitat and natural history is provided for both species.
Yadav A.K.,Entomology Research Laboratory |
Singh S.Y.M.K.,Entomology Research Laboratory
Journal of Entomological Research | Year: 2011
Tanaostigmodes cajaninae, a major pest of pigeonpea, Cajanus cajan in India, has been reported from more than twenty five alternate host plants. Rhynchosia minima has been recorded from Agra as new alternate host plant of T. cajaninae for the first time in India. Different stages of the pest alongwith its parasitoid were recorded on this new host plant.