نتایج جستجو برای: crop damage

تعداد نتایج: 291472  

Journal: :Journal of Biological Control 2023

The tomato pinworm damage, population build-up, the damage and longevity of native predatory bug, Nesidiocoris tenuis in sole crop diversified (pumpkin sunn hemp as border + a patch hedgerow) were studied. Infestation pinworm, Phthorimaea absoluta was found to be highest (5.60 live mines/plant at 20 DAP) compared (1.50 mines per plant). No significant difference number necrotic rings plant obse...

The yield loss simulation (YLS) and the MACROS LIQ.CSM models were used to simulate the effect of stem borer damage at a detillering rate of 5, 15, 30, 60% at vegetative, panicle initiation and grain filing stages, on yield of rice cultivar?s Ratna. This stem borer damage during vegetative and panicle initiation stages was not simulated appropriately by both the models. Relatively MACROS simul...

Journal: :Journal of Economic Entomology 2021

Abstract To evaluate perimeter trap crops for management of harlequin bug, Murgantia histrionica (Hahn), we undertook greenhouse and field experiments with mustard greens as crop a collard cash crop. We confirmed that bugs prefer to immigrate reside on mustard. Females, however, in cage experiments, ‘commuted’ collards lay their eggs. In separate spring fall plantings, using replicated 12 m by ...

طبری, مهرداد, قهاری, حسن,

Green semilooper, Naranga aenescens Moore (Lepidoptera: Noctuidae) is a major pest in paddy fields of northern Iran. Since plant resistance to pests is a method with high efficacy and safety, a research was conducted to evaluate the resistance of 12 rice varieties (including, Tarom, Shafagh, Hybrid, Khazar, Poya, Fajr, Kados, Shiroodi, Sahel, Tabesh, Nemat and Neda) to N. aenescens on the basis...

2002
DAVID R. COYLE

Aculops lobuliferus (Keifer) is a little known pest of plantation Populus spp., which is capable of causing substantial damage. This is the Þrst documented occurrence of A. lobuliferus in South Carolina. Previous anecdotal data indicated clonal variation in Populus susceptibility to A. lobuliferus damage. A damage rating scale was created to monitor mite damage in 2000Ð2001 in a short-rotation ...

2013
A. Anderson C. A. Lindell K. M. Moxcey W. F. Siemer J. E. Carroll C. L. Burrows J. R. Boulanger

Fruit loss to birds is a long-standing and costly problem for many producers. We conducted a survey of Honeycrisp apple, blueberry, cherry, and wine grape growers in California, Michigan, New York, Oregon, and Washington to estimate costs of bird damage and benefits of bird damage management. We also assessed grower perceptions of impacts on profits and effectiveness of bird management techniqu...

2017
Rituraj Batth Kapil Singh Sumita Kumari Ananda Mustafiz

Abiotic stress and climate change is the major concern for plant growth and crop yield. Abiotic stresses lead to enhanced accumulation of reactive oxygen species (ROS) consequently resulting in cellular damage and major losses in crop yield. One of the major scavengers of ROS is ascorbate (AA) which acts as first line of defense against external oxidants. An enzyme named ascorbate oxidase (AAO)...

Journal: :International Journal of Research in Advent Technology 2019

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