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Full-Text Articles in Life Sciences
W164 Replanting Corn - In A Failed Roundup™ Ready Corn Stand, The University Of Tennessee Agricultural Extension Service
W164 Replanting Corn - In A Failed Roundup™ Ready Corn Stand, The University Of Tennessee Agricultural Extension Service
Field & Commercial Crops
In spring 2007, a widespread freeze occurred that led to the replanting of about 200,000 acres of corn in Tennessee. In most years, replant decisions have to be made on a limited number of acres when corn fields have insufficient stands for optimum yields. Producers are then forced to make a number of decisions quickly, because planting delays, particularly into mid-May, can greatly affect yield potential of the replanted crop.
W127 Common Beneficial Arthropods Found In Field Crops, The University Of Tennessee Agricultural Extension Service
W127 Common Beneficial Arthropods Found In Field Crops, The University Of Tennessee Agricultural Extension Service
Field & Commercial Crops
There are hundreds of species of insects and spiders that attack arthropod pests found in cotton, corn, soybean and other field crops. A few common and representative examples are presented herein. With few exceptions, these beneficial arthropods are native and common in the southern United States. The cumulative value of insect predators and parasitoids should not be underestimated, and this publication does not address important diseases that also attack insect and mite pests. Without biological control, many pest populations would routinely reach epidemic levels in field crops. Insecticide applications typically reduce populations of beneficial insects, often resulting in secondary pest …
W129 Bt Cotton, The University Of Tennessee Agricultural Extension Service
W129 Bt Cotton, The University Of Tennessee Agricultural Extension Service
Field & Commercial Crops
Bt cotton has been genetically modified by the insertion of one or more genes from a common soil bacterium, Bacillus thuringiensis. These genes encode for the production of insecticidal proteins, and thus, genetically transformed plants produce one or more toxins as they grow. The genes that have been inserted into cotton produce toxins that are limited in activity almost exclusively to caterpillar pests (Lepidoptera). However, other strains of Bacillus thuringiensis have genes that encode for toxins with insecticidal activity on some beetles (Coleoptera) and flies (Diptera). Some of these genes are being used to control pests in other crops, …
W127-Common Beneficial Arthropods Found In Field Crops, The University Of Tennessee Agricultural Extension Service
W127-Common Beneficial Arthropods Found In Field Crops, The University Of Tennessee Agricultural Extension Service
Insects, Pests, Plant Diseases and Weeds
There are hundreds of species of insects and spiders that attack arthropod pests found in cotton, corn, soybean and other field crops. A few common and representative examples are presented herein. With few exceptions, these beneficial arthropods are native and common in the southern United States. The cumulative value of insect predators and parasitoids should not be underestimated, and this publication does not address important diseases that also attack insect and mite pests. Without biological control, many pest populations would routinely reach epidemic levels in field crops. Insecticide applications typically reduce populations of beneficial insects, often resulting in secondary pest …