ARMYWORM MANAGEMENT IN FRESH MARKET TOMATO, SPRING 2013
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چکیده
منابع مشابه
Evaluation of action threshold-based insecticide spray programs for tomato fruitworm management in fresh-market tomatoes in Virginia
Action threshold-based insecticide spray regimens were evaluated for control of tomato fruitworm (Helicoverpa zea [Boddie]) in freshmarket tomatoes in eastern Virginia in 1998 and 1999. The initial foliar-applied insecticide spray was made based on the presence of X1 H. zea egg on either X2%, X10% or X20% of plants sampled, while subsequent sprays were made on either a weekly basis or only if X...
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Conventional soil management systems (SMS) use synthetic inputs to maximize crop productivity, which leads to environmental degradation. Organic SMS is an alternative that is claimed to prevent or mitigate such negative environmental impacts. Vegetable production systems rely on frequent tillage to prepare beds and manage weeds, and are also characterized by little crop residue input. The use o...
متن کاملECEN 5014 , Spring 2013
The challenge in designing a broadband microwave amplifier is the fact that the input impedance at lower frequencies is practically an open circuit, and at higher frequencies predominantly capacitive and can be almost a short. This makes broadband matching difficult. For example, the TriQuint device we used for the project has an input impedance that is practically an open circuit at 0.1GHz, is...
متن کاملMajor insect pests and economics of fresh-market tomato in eastern Virginia
Major insect pests of fresh-market tomato, Lycopersicon esculentumMiller, in eastern Virginia were identified as those responsible for reducing marketable fruit yield from 1998 through 2000. Nineteen arthropod pest species infested springand fall-grown tomato crops, but only thrips, stink bugs, and Lepidopterans, particularly the corn earworm (Helicoverpa zea [Boddie]), reduced yield. Fruit inj...
متن کاملColored Mulches Affect Yield of Fresh-market Tomato Infected with Meloidogyne incognita.
The effects of different-colored polyethylene mulches on the quantity and spectra of reflected light, earliness of fruit set, fruit yield and quality, and root-knot disease were studied in field-grown, staked tomato (Lycopersicon esculentum). White mulch reflected more photosynthetic light and a lower far-red-to-red ratio than red mulch, whereas black mulch reflected less than 5 percent of any ...
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ژورنال
عنوان ژورنال: Arthropod Management Tests
سال: 2014
ISSN: 2155-9856
DOI: 10.4182/amt.2014.e13