Rice natural enemies

A field experiment on seasonal abundance of rice leaf folder and its natural enemies under irrigated condition was carried out on farmer’ s fields in villages (Murchipur, Shivdaspur and Dabhasemar) of District- Faizabad (U.P). The incidence of leaf folder was relatively more in Kharif, 2013 as compared to Kharif, 2014.

11p angicungduoc8 07-11-2020 8 1   Download

Ecological engineering and ecofriendly pest and disease management strategies in paddy is the need of the hour because of reduction in natural enemies population in rice ecosystem due to indiscriminate use of pesticides. Ecological Engineering and ecofriendly pest and disease management strategies in paddy was demonstrated in the farmers’ field as Front Line Demonstration in Nagapattinam district of Tamil Nadu. In the demonstration plot the dead heart symptoms was 3.63% and white ear was 0.86% compared to 13.29% and 2.

7p caygaocaolon7 18-09-2020 14 0   Download

This paper discusses the population dynamics of rice insect-pests and its correlation with abiotic factor in Kanpur district of U.P. Incidence and abundance of rice insect-pests. Paddy crop was monitored during the seasons kharif, 2015 & 2016. This investigation revealed that pest activity commenced from 34th Standard meteorological week (SMW) and continued to 49th std. week.

15p chauchaungayxua4 18-03-2020 10 1   Download

The maximum number of natural enemies was recorded in chlorantraniliprole 18.5% SC treated plots except checked (untreated or control) followed by buprofezin 25 SC, imidacloprid 17.8SL, cartap hydrochloride 4G, malatian 5% D and fipronil 5 SC, respectively in both the experimental years.

10p chauchaungayxua4 18-03-2020 6 1   Download

In this study the species diversity of rice leaf folder and their natural enemies were studied in three different blocks of Odisha and three Research stations of Odisha University Agriculture & Technology, Bhubaneswar(under North Eastern Coastal plains) during the year 2015 and 2016 at different growth stages of paddy crop on the basis of morphological characteristics, wing marking, coloration, characters of pronotum, subdorsal spots on prothorax and size of the larvae as described by Barrion and Litsinger (1991) etc.

12p caygaocaolon2 11-03-2020 15 1   Download

The field experiment was conducted at College farm, College of Agriculture, Rajendranagar, Hyderabad during Rabi 2017-18 to evaluate the effect of different cultivation systems on incidence of spiders, coccinellids and per cent parasitisation in paddy with four treatments and three replications, taking TN1 as test cultivar and following the recommended package of practices under each cultivation systems.

7p caygaocaolon3 27-02-2020 14 0   Download

A study on eco friendly management of Rice bug, Leptocorisa acutaunder upland rice by using organic pesticide was taken inOnattukara Regional Agricultural Research Station, Kayamkulam. Randomized block design with seven treatments and three replications were chosen which include 3 botanicals (1% azadirachtin 0.003%, cashew nut shell liquid 0.1% and dasagavya 3%), one microbial agent (chitin based Pseudomonas 2.5 kg ha-1 ), one animal origin pesticide (fish jaggery extract 0.6%) and one check insecticide (Malathion 50 EC 0.1%) and untreated control plot.

9p quenchua2 15-12-2019 10 0   Download

This paper was presented as the first annual John Gerhart Memorial Lecture at the conference of the Africa Genome Initiative held in Cairo in March 2004. In Africa in the Age of Biology, Dr James discusses Africa’s long history of scientific, technological and mathematical enterprise, from tokens of the very earliest counting by humans to the sum of knowledge brought to bear in the construction of the pyramids. But he focuses on the challenges of today, and tomorrow, which he suggests Africa’s leaders and scholars dare not overlook....

0p quatet 12-01-2013 38 2   Download

.The International Rice Research Institute (IRRI) and the Africa Rice Center (WARDA, the acronym for West Africa Rice Development Association) are two of fifteen Future Harvest research centers funded by the Consultative Group on International Agricultural Research (CGIAR). The CGIAR is cosponsored by the Food and Agriculture Organization of the United Nations (FAO), the International Bank for Reconstruction and Development (World Bank), the United Nations Development Programme, and the United Nations Environment Programme.

0p conchokon 07-01-2013 88 4   Download