R. S. Bhandari , Swati Pande , M. C. Joshi , S. M. H. Zaidi , J. M. S. Rawat , Vinod Kumar

Abstract

Control of cone worm Dioryctria abietella Denis and Schiff. Infesting cone and seed of spruce (Picea smithiana) in seed production areas was attempted. The systemic insecticides viz thimet, carbofuran, dimethoate, monocrotophos were applied at the point of drip line application in soil and through tree injection at the base of the trees in Seed Production Area (SPA) at Deoban, Kanasar Range, Chakrata Forest Division (Uttaranchal). Tree injection with monocrotophos 36 EC 100 ml with 20 cm Girth of a tree at Breast Height was found superior than the application of granular pesticides in the soil at the drip line. Tree injection could protect 86.49 per cent, cones from the attack of cone worm.

Full Text

     

M. C. Joshi , S. Radhakrishnan , R. Khare

Abstract

No abstract

Full Text

     

M. C. Joshi , C. B. S. R. Sarma

Abstract

51 grasses-22 belonging to the subfamily Panicoideae and 29 to the subfamily Pooideae are reported from certain areas of Jhunjhunu district, Rajasthan. Occurring most frequent are those of tribe Eragrosteae. The above data are compared with those of other investigated areas of the state. It is found that tribe Paniceae, in general, is dominant in the state. The grasses further categorized into habitat c1asses.

Full Text