Root-knot nematode infestation is one of the biggest soilborne problems for Florida vegetable growers. According to Johan Desaeger, assistant professor of nematology at the University of Florida’s Gulf Coast Research and Education Center, root-knot nematodes are very widespread in Florida and can cause some major issues. Once these nematodes enter the plant’s root system, they cause root-knot galls, which can …
Watch Out for Sweet Potato Weevil
By Breanna Kendrick What’s small, black, has six legs and causes a lot of damage to sweet potato crops? The sweet potato weevil. Once this pest is present and fields become highly infested, it’s very difficult to control. The weevil causes unsightly effects to the outside and inside of the sweet potato, making it hard to move the product through …
Black Aphids Invade Georgia Pecans
By Breanna Kendrick Black aphids are small black insects that feed on the leaves of pecan trees. The area where black aphids are feeding will turn yellow and become necrotic, killing the tissues surrounding the feeding area. Black aphids are most common later in the pecan season. Black aphids do have some populations early in the season, but are less of …
Varroa Mite Control Efforts Continue
By Breanna Kendrick Varroa mites have been in the United States since 1987, but there’s still not a good solution for controlling them. These mites impact honeybee colonies by feeding on the bees and vectoring viruses. The mites pass viruses around the colonies and make the bees very sick. Varroa control is tricky because the goal is to kill an …
GMOs vs. Cowpea Curculios
By Breanna Kendrick A big issue growers in the Southeast are facing is a weevil called cowpea curculio. This New World insect is very harsh on Old World peas, such as cowpeas. Insects are typically controlled with an insecticide, but this particular weevil has become resistant to many insecticides and can devastate a crop. Cowpea curculio is so hard on …
Slugs and Snails May Cause a Sticky Situation
Alabama vegetable growers have been dealing with pests that cannot be controlled by insecticides: slugs and snails. According to Ayanava Majumdar, Extension entomologist with Auburn University, increased rainfall over the past year has created this unusual problem of snail and slug infestation. These pests favor wet conditions. Moist soil is the perfect environment for snails and slugs. They also prefer …
Managing Caribbean Fruit Fly on Peaches
By Breanna Kendrick Cory Penca, an entomology Ph.D. candidate and a student in the Doctor of Plant Medicine program at the University of Florida, gave a presentation at the recent Stone Fruit Field Day on managing key pests of peaches in Florida. One of the many pests he discussed was the Caribbean fruit fly. Caribbean fruit fly is specifically a …
Research Team Targets Whiteflies
By Breanna Kendrick and Abbey Taylor The University of Georgia whitefly team is made up of research and Extension entomologists, plant pathologists and horticulture specialists. All of these professionals are involved in whitefly research across commodities such as peanuts, soybeans and vegetables. The team is doing research and education on whiteflies and the diseases that they vector. “It’s really just …
Spotted Wing Drosophila Spells Trouble for Grape Growers
By Breanna Kendrick Spotted wing drosophila (SWD) are small fruit flies that resemble the flies commonly seen indoors buzzing around rotting fruit. Adult male SWD have a little spot on each of their wings, making them easy to identify. Females are more difficult to identify. At the rear of the female SWD abdomen is an egg-laying structure called an ovipositor. …
Cowpea Curculio Wreaking Havoc in the Southeast
By Breanna Kendrick One of the toughest insect problems to deal with in the Southeast is cowpea curculio. It has been very difficult to control because it becomes resistant to insecticides. Cowpea curculio is a weevil that can be very destructive to the crops it attacks. This pest is just as destructive to southern peas as the boll weevil is …