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Greenbug Aphid Although it is more important to recognize the economic potential of an infestation than to be able to identify the different species, the following are brief descriptions of each species along with information on the damage they do. A recent survey of eastern Virginia showed that of the four species, English . . . → Read More: Aphid Identification Four species of aphids attack small grains in Virginia — greenbug, corn leaf aphid, bird cherry-oat aphid, and English grain aphid. In general, these aphids are small pear-shaped insects (1/16 to 1/8 inch long) that are green to nearly black, or sometimes pinkish in colour. Immature aphids look just like adults except smaller. Both . . . → Read More: Aphids In Virginia Small Grains Methods Young stalks Because it is cold-intolerant, in the temperate zones maize must be planted in the spring. Its root system is generally shallow, so the plant is dependent on soil moisture. As a C4 plant (a plant that uses C4 carbon fixation), maize is a considerably more water-efficient crop than C3 plants . . . → Read More: Maize - Production, Pests and Diseases |
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