We continue to investigate an issue that I wrote about in last week's update, in which the fruitlets on aronia bushes are turning yellow and dropping from the plants. The plum curculio (Conotrachelus nenuphar) is an important pest of fruit in North America.Considered oligophagous (feeding only on a limited number of foods), plum curculio largely utilizes rosaceous hosts like stone and pome fruits, but it may be a pest of blueberry in some regions. The cause is currently unknown. Chatham County Agricultural Extension Agent Debbie Roos works with farmers to promote increased awareness, understanding, and practice of sustainable agriculture through monthly educational workshops, a website, on-farm visits, and other consultation. These small, native weevils (snout-beetles) are found on numerous wild hosts. Small farms also provide many indirect benefits. Curculio Riffs by Michael Phillips. Check out the local farm profiles and farm photos on this website for a glimpse of the diversity that allows Chatham’s farms to prosper. Plum curculio is the key fruit insect pest that attacks peaches in Georgia and adjacent Southeastern states. Spam protection has stopped this request. The University of Maryland, College of Agriculture and Natural Resources Subscribe By Email chevron_right. They can cause considerable damage to apple, pear, apricot, peach, plum, nectarine, cherry, and other fruits. It generally attacks in early spring, but the damage will continue throughout the season. All rights reserved. The female lays her eggs in small wounds she carves in the fruit, leading to a clear ooze emerging afterwards. Plum curculio adults and thinning apples collected in Michigan during the summer were used to rear new plum curculio adults in a laboratory colony for release–recapture trials in autumn. From Bear Creek to Bynum, Silk Hope to Moncure, the Chatham County landscape is dotted with small farms. These insects are active primarily at night, which explains why you don’t see them. Everyone else who guessed correctly will also have their name entered into the raffle. The beetle has a long, downward-bending snout. The Chatham County Center of North Carolina Cooperative Extension has long recognized the value and importance of the sustainable agriculture practiced by small farms in the area. Thank you, your email will be added to the mailing list once you click on the link in the confirmation email. It is likely a stress response to an environmental stress occurring between bloom and ripening, but further investigation is necessary to determine what stress is causing it, and how to prevent it. However, if the egg hatches, the larva will bore into the fruit, which will usually cause the fruit to drop from the tree. Based in the College of Agriculture and Life Sciences, we reach millions of North Carolina citizens each year through local centers in the state's 100 counties and with the Eastern Band of Cherokee Indians. About Extension. The name is deceptive because the insect attacks fruits other than plums. Female adults cut a crescent-shaped hole in the young fruit to deposit eggs just beneath the skin. While the most critical time for controlling PC was the two weeks following petal fall, certain insecticides can still be applied now to reduce populations. After codling moth, plum curculio is often regarded as the most serious pest of tree fruits in eastern North America. Working hand-in-hand with our partners at N.C. A&T and 101 local governments, we conduct groundbreaking research that addresses real-world issues in communities across the state. programs are open to all and will not discriminate against anyone because of race, Other symptoms of hot, dry weather early in the season may include slow growth on new plants, poor fruit set, small fruit size, and nutrient deficiency symptoms on the leaves such as leaf yellowing.
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