نتایج جستجو برای: nematode control

تعداد نتایج: 1342323  

احمد خیری, , حشمت اله رحیمیان, , عباس شریفی تهرانی, , نوازاله صاحبانی, ,

The effect of Rathayibacter tritici on the movement of Anguina tritici larva and nematode function as vector of ear rot bacterium was conducted in the laboratory (Agarose plates) and greenhouse conditions. The results showed that the contact of nematode larva with high concentration of bacterium or long duration of nematode-bacteria contact can decrease the movement and the efficiency of nemato...

Journal: :Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie 1983

The Nematodes are roundworms that are found in every environment of the earth. While some species are harmful parasites, others play a vital role in nutrient cycle and medical research. Nematode infestation in the fields is poly-specific; however, depending on the agro-climatic conditions, one or two species are dominant over the rest. The present studies attempts to observe and control the roo...

Journal: :کنترل بیولوژیک آفات و بیماری های گیاهی 0
سمیه مختاری کارشناسی ارشد (مربی)، دانشگاه خلیج فارس نوازاله صاحبانی دانشیار، پردیس ابوریحان دانشگاه تهران حسن رضا اعتباریان استادیار، پردیس ابوریحان دانشگاه تهران

root-knot nematodes (meloidogyne spp.) are among the most important groups of plant-parasitic nematodes, causing damage and yield losses to most cultivated plants. the bacterium pseudomonas fluorescens cha0 and the fungus trichoderma harzianum bi were investigated for biological control capability and systemic induction of resistance against the nematode m. javanica under glasshouse conditions....

2012
Michelle M. Cram Stephen W. Fraedrich

Plant-parasitic nematodes can affect seedling production in forest nurseries when host seedlings are developmentally vulnerable, nematode populations are high, or opportunistic pathogens are present. Soil fumigation has been important for plant-parasitic nematode control in forest nurseries. Regulatory changes and rising costs of fumigant application are expected to affect nursery pest manageme...

2003
Richard S. Hussey Eric L. Davis Thomas J. Baum

The most evolutionary advanced adaptations for plant parasitism by nematodes are the products of parasitism genes expressed in their esophageal gland cells and secreted through their stylet into host tissue to control the complex process of parasitism. Molecular analyses of nematode parasitism genes are revealing the complexity of the tools that enable the nematode to attack plants, and the res...

Journal: :کنترل بیولوژیک آفات و بیماری های گیاهی 0
مهسا خسروی دانشجوی کارشناسی ارشد بیماری شناسی گیاهی، دانشکدة کشاورزی، دانشگاه یاسوج محمد عبدالهی دانشیار بیماری شناسی گیاهی، گروه گیا ه پزشکی، دانشکدة کشاورزی، دانشگاه یاسوج مهدی صدروی دانشیار بیماری شناسی گیاهی، گروه گیا ه پزشکی، دانشکدة کشاورزی، دانشگاه یاسوج

to evaluate the effect of metarhizium anisopliae and trichoderma harzianum on root knot nematode (meloidogyne javanica) in tomato, experiments was performed under controlled as well as greenhouse conditions. volatile and non-volatile tests showed that there is no inhibitory effect against every one of each biocontrol agents. on the larval mortality and inhibition of egg hatching, a laboratory t...

Journal: :دانش گیاه پزشکی ایران 0
آیت اله سعیدی زاده احمد خیری جواد زاد حسن رضا اعتباریان علیرضا بندانی فهیمه نیاستی

verticillium wilt verticillium dahliae is now a days commonplace in olive orchards in north of iran. root-knot nematode, meloidogyne javanica, as well is one of the most widely disseminated plant parasitic nematodes in olive orchards of iran. this study was arranged to find the effects of two sets of pot beds on these pathogens' interaction. microsclerotia of verticillium dahliae and j2s o...

Journal: :journal of crop protection 2015
samad jamali farzaneh ghasemi

among fungi, species of the genus paecilomyces are considered as promising biological control agents with high potential to reduce root-knot nematode (rkn) and other nematode populations. in this research we investigated a soil hyphomycetes, paecilomyces marquandii and its pathogenicity on eggs of rkn in vitro. in greenhouse test, root weight, plant length, fresh weight and dry weight of plants...

Journal: :دانش گیاه پزشکی ایران 0
آیت الله سعیدی زاده استادیار دانشکده علوم کشاورزی، دانشگاه شاهد فهیمه نیاستی کارشناس دانشکده علوم کشاورزی، دانشگاه شاهد

in the course of the present study, samples were taken from the non-defoliant strain of verticillium dahliae (ss-4) from infected olive groves in toshan area in southern gorgan. root-knot nematode, meloidogyne javanica, was recovered from infested olive seedlings and after identification was reaned on tomato seedlings cv. rutgers. during the study, one-year-old seedlings of olive cultivars zard...

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