نتایج جستجو برای: pest control methods

تعداد نتایج: 2936264  

Journal: :کشاورزی (منتشر نمی شود) 0
الهام احمدی بخش تحقیقات جانورشناسی کشاورزی، مؤسسه تحقیقات آفات و بیماری های گیاهی، تهران - ایران‏ مجید ‏حسنی مقدم واحد اقتصاد، مؤسسه تحقیقات آفات و بیماری های گیاهی، تهران - ایران‏

two slug species (parmacella ibera and agriolimax agresteris) from parmacelidae and ‎limacidae families were found dominant injuries slugs in nursery and field conditions during ‎2001-2003. different methods of control under field condition in grakheil station of sari vicinity ‎studied. the experiment conducted in complete randomized block design with eight treatments and ‎four replications. ea...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده مهندسی 1387

abstract this paper discusses several commonly used models for strategic marketing¹ including market environmental analysis methods (i.e. swot and pest analysis) and strategic marketing tools and techniques (i.e. boston matrix and shell directional policy matrix)and shows how these models may help a firm to achieve its strategic goals. at first, the main reason for doing this research is de...

بیژن حاتمی, , زینت احمدزاده, ,

Greenhouse whitefly, Trialeurodes vaporariorum West. is one of the most important pests of the field crops and ornamental plants in greenhouses. Pest control is based on using chemical insecticides and biological control agents. In this study, the efficiency of the green lacewing, Chrysoperla carnea ( Steph.) with release ratios of 1:1, 1:5, 1:10, 1:15, and 1:20 (predator:prey) using eggs in ch...

بیژن حاتمی, , زینت احمدزاده, ,

Greenhouse whitefly, Trialeurodes vaporariorum West., is one of the most important pests of field crops and ornamental plants in greenhouses which usually controlled by chemical insecticide and/or by biologic control factors. In this study the effect of singular and integrated use of Confidor and predator, Chrysoperla carnea (Steph.) against different nymphal instars of the pest on tomato plant...

2012
Trudy Sharp

There is an expectation that animal suffering associated with pest management be minimised. The most humane methods that will achieve the control programs’ aims must be used. Consideration of animal suffering should occur regardless of the status given to a particular pest species or the extent of the damage or impact created by that pest. While the ecological and economic rationales for the co...

2012
Glen Saunders

There is an expectation that animal suffering associated with pest management be minimised. The most humane methods that will achieve the control program’s aims must be used. Consideration of animal suffering should occur regardless of the status given to a particular pest species or the extent of the damage or impact created by that pest. While the ecological and economic rationales for the co...

2012
Claudio de Sassi Jason M. Tylianakis

All living organisms are linked through trophic relationships with resources and consumers, the balance of which determines overall ecosystem stability and functioning. Ecological research has identified a multitude of mechanisms that contribute to this balance, but ecologists are now challenged with predicting responses to global environmental changes. Despite a wealth of studies highlighting ...

Journal: :Zeitschrift f�r Angewandte Mathematik und Physik (ZAMP) 2003

مجد, فرامرز, جعفری, رضا , ذوالفقاری, حمیدرضا, طهماسبی, غلامحسین , عبادی, رحیم ,

In this study, the control method of greater wax moth using male sterilization technique with gamma ray and chemical control methods were examined and compared. In order to determine the safe and effective dosage of gamma-ray to sterilize male pupae of the greater wax moth, an experiment was conducted in a complete randomized design with 5 treatments and 3 replicates with 50 male pupae in each ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده علوم پزشکی 1389

introduction: diabetes mellitus is an growing national and international public health concern. the number of people affected by diabetes in world by 2030 will be 69% in developing countries. regular physical activity plays a key role in the management of type 2 diabetes melitus, particularly glycemic control. it has been recommended that peoples with type 2 diabetes participate in moderate-int...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید