نتایج جستجو برای: tetranychus urticae koch is an injurious pest of
تعداد نتایج: 21800162 فیلتر نتایج به سال:
Surface arthropods on pome fruits can cause export problems and disrupt commercial markets. Eliminating insects and mites on the packing line would be the last opportunity to provide for pest-free produce. In this study, an experimental packing line was used to evaluate techniques using different surfactant baths, pressurized water sprays, and styles of rotating brushes to remove field-collecte...
The two-spotted spider mite Tetranychus urticae is a damaging pest worldwide with a wide range of host plants and an extreme record of pesticide resistance. Recently, the complete T. urticae genome has been published and showed a proliferation of gene families associated with digestion and detoxification of plant secondary compounds which supports its polyphagous behaviour. To overcome spider m...
abstract: in this thesis, we focus to class of convex optimization problem whose objective function is given as a linear function and a convex function of a linear transformation of the decision variables and whose feasible region is a polytope. we show that there exists an optimal solution to this class of problems on a face of the constraint polytope of feasible region. based on this, we dev...
Parameter estimation for the functional response of predator-prey systems is a critical methodological problem in population ecology. In this paper we consider a stochastic predator-prey system with non-linear Ivlev functional response and propose a method for model parameter estimation based on time series of field data. We tackle the problem of parameter estimation using a Bayesian approach r...
İki noktalı kırmızı örümcek, Tetranychus urticae Koch (Acari: Tetranychidae) elma bahçelerinde ekonomik kayıp oluşturan önemli zararlılardan birsidir. Kısa süreli biyolojileri nedeniyle kullanılan akarisitlere çok kısa sürede direnç geliştirmektedirler. Bu nedenle etkili bir kimyasal mücadele için T. popülasyonlarının gösterdikleri duyarlılık düzeyleri periyodik olarak izlenmelidir. çalışmada, ...
Jasmine Jasminum sambac L. is an important ornamental crop that fetches recurrent income to farmers. The present study was carried out in three locations Sevandhanagar, Navalurkuttappattu and Horticulture farm, TNAU, Tiruchirappalli, Tamil Nadu, India from August 2019 September 2020. seasonal incidence of major insect pests such as Hendecasis duplifascialis Hampson, Nausinoe geometralis Guenee,...
در مطالعه فونستیکی که طی سال های 1389- 1388 به منظور جمع آوری و شناسایی کنه های راسته پیش استیگمایان پارک جنگلی فندقلوی اردبیل انجام گرفت تعداد 150 اسلاید میکروسکوپی از مجموع نمونه های جمع-آوری شده تهیه و شناسایی گردید. در این مطالعه در مجموع 22 گونه و 19 جنس متعلق به 11 خانواده از راسته پیش استیگمایان شناسایی گردید که از بین آن ها تعداد چهار گونه برای فون کنه های جهان، یک جنس و یک گونه برای ای...
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