Survey of some rice insect pests and their predators in three districts of Sri Lanka
نویسندگان
چکیده
منابع مشابه
the stady and analysis of rice agroclimatology in lenjan
the west of esfahan province, iran, is one of the most important agricultural areas throughout the country due to the climate variability and life-giving water of zayanderood river. rice is one of the major and economic crops in this area. the most important climatic elements in agricultural activities which should be considered include temperature, relative humidity, precipitation and wind. so...
15 صفحه اولNew Records of some Pests of the Coconut Inflorescence and Developing Fruit and Their Natural Enemies in Sri Lanka
A survey was carried out at Bandirippuwa Estate, Kir imetiyana Estate and at Isolated Seed Garden, Rajakadaluwa for the pests of coconut inflorescence and developing fruits. The mite, Dolichotetranychus sp. (Tenuipalpidae) which lives beneath the perianth and feeds on the epicarp, causes considerable damage to the developing fruit. Bi-monthly observations on the intensity of infestation of nuts...
متن کاملNew Records of some Pests of the Coconut Inflorescence and Developing Fruit and Their Natural Enemies in Sri Lanka
A survey was carried out at Bandirippuwa Estate, Kirimetiyana Estate and at Isolated Seed Garden, Rajakadaluwa for the pests of coconut inflorescence and developing fruits. The mite, Dolichotetranychus sp. (Tenuipalpidae) which lives beneath the perianth and feeds on the epicarp, causes considerable damage to the developing fruit. Bi-monthly observations on the intensity of infestation of nuts ...
متن کاملManaging Insect Pests of Rice in Africa
(eds M.C.S. Wopereis et al.) 229 In the search for sustainable management options to increase food security, an overall challenge is to increase yields and decrease losses during production and harvest without harming the environment and resource base for future generations of farmers and consumers. As such, integrated pest management (IPM) plays a key role in the context of sustainable agricul...
متن کاملPrevalence of inflammatory bowel disease in two districts of Sri Lanka: a hospital based survey
BACKGROUND Inflammatory bowel disease (IBD) is being increasingly diagnosed in Asia. However there are few epidemiological data from the region. METHODS To determine prevalence and clinical characteristics of IBD, a hospital-based survey was performed in the Colombo and Gampaha districts (combined population 4.5 million) in Sri Lanka. Patients with established ulcerative colitis (UC) and Croh...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of the National Science Foundation of Sri Lanka
سال: 1990
ISSN: 2362-0161,1391-4588
DOI: 10.4038/jnsfsr.v18i1.8211