One of the most potentially damaging problems facing sweet corn producers is controlling insects that feed on the ear. During the summer months, if you grow sweet corn, you need to watch for corn earworm. Continue reading
Category Archives: Pests
Disease Management in the Home Lawn
Numerous infectious diseases can occur on lawns in Kentucky. Unless diagnosed and managed, these diseases can sometimes cause extensive damage. A sound lawn management program provides benefits in two ways: it reduces the severity of lawn
diseases; and improves the lawn’s recovery should a disease outbreak occur. You can control diseases of turfgrasses most effectively by using as many of the following lawn management practices as feasible. Continue reading
Spruce Dieback Needle Cast Disease May be To Blame
Blue spruce and Norway spruce are popular landscape plants in Kentucky. However, many factors can cause spruce trees to cast (shed) needles. Casting may be the result of environmental stresses (heavy soil, poor drainage) or fungal diseases. In Kentucky, Rhizosphaera needle cast is the most common disease of spruce. This disease causes needle drop on lower branches, resulting in a distinct thinned appearance. Stigmina needle cast is a less common disease of spruce, but also causes symptoms similar to Rhizosphaera needle cast. Management options for both diseases include reduction of plant stress, good sanitation practices, and timely use of fungicides. Continue reading
Mulch, Mold, & Fungi
Mulch can be beneficial in many ways on plant beds, around foundation shrubs and
other gardening locations in your yard, but mold can threaten its benefits.
In landscape beds and gardens, mulch helps control weeds, prevent extreme soil
temperature fluctuation, decrease water evaporation and improve drainage. Mulch also
reduces mower and string trimmer damage on shrubs and trees by suppressing vegetation near their trunks. As it decomposes, mulch produces organic materials to improve soil and otherwise benefit plants. Continue reading
Household Fall Invaders
Beetles, bugs, and flies are some of the creatures actively seeking protected overwintering sites as days get shorter and cooler. Many produce stains or unpleasant odors if crushed. Scavengers, such as carpet beetles, can be attracted to accumulations of
insects that die in attics and wall voids. Lastly, overreaction to pests may lead to excessive insecticide use indoors that can have serious consequences. Continue reading
Controlling Mosquitoes
Controlling mosquitoes is challenging to say the least. You may even think you are fighting a never-ending battle. With mosquito-borne diseases, like the Zika virus, becoming more prevalent, it’s even more important to know how to take control of these pests around your home environment. Learning to do a few simple things could help protect you from more than the itchiness of a mosquito bite. Continue reading
Fire Blight
Fire blight is a highly destructive disease of apple and pear that can occur in commercial orchards and home plantings. Many landscape trees and shrubs in the rose family are also susceptible to this disease. Fire blight can cause severe damage in a very short period of time. Because precise conditions are needed for infection, disease appearance is erratic from year to year. Continue reading
Winter Fruit Tree Care
During the winter months, home orchard owners need to protect their fruit trees from rabbits and voles. But hold off on any pruning until after the worst of the cold, winter weather has passed.
Rabbits and voles injure fruit trees by chewing the bark from the lower trunk and portions of the roots. This damage may kill or severely weaken the trees.
Continue reading
Clean Up for Clean Plants
Autumn has arrived in Kentucky and, as leaves change color and fall from trees, it is time to focus on landscape sanitation. Good sanitation practices can help reduce disease-causing pathogens. These organisms can survive for months or years on dead plant material or in soil, causing infections in subsequent years. Elimination of disease-causing organisms reduces the need for chemical controls and can improve the effectiveness of disease management practices. Following these sanitation practices both in autumn and throughout the growing season can reduce disease pressure in home and commercial landscapes. Continue reading
Brown Marmorated Stink Bugs
While monitoring vegetable and soybean fields in the Lexington area, I have noticed that the number of brown marmorated stink bug (BMSB) adults has dropped off as the numbers of nymphs on these crops has remained constant. Last year, BMSB began to gather on the sides of homes the first week in September. This makes me believe that BMSB is changing its behavior from plant feeding to begin searching for overwintering sites, possibly your home. I did spot 15 BMSB on the side of my house on Saturday. So, over the next several weeks we should expect BMSB to gather on buildings in search of suitable overwintering sites. Once inside buildings they will remain active until mid-spring. Continue reading
Kentucky Hort News 
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