Apples

Presentations from the Western Maryland Regional Fruit Meeting

Fungicide Resistance Management Guidelines for Apple Scab, Powdery Mildew, Brown Rot, and Peach Scab Control in the Mid-Atlantic United States, by Alan R. Biggs, West Virginia University and Kari Peter, Penn State University.

Resources for tree fruit pest management for commercial growers.

Common Fruit Herbicides*

Multi-fruit orchard spray program for the control of major tree fruit pests and diseases.

Vegetable and Fruit Newsletter, Volume 15: Issue 3, May 2024. Topics include: Preemergence Herbicides for Common Weeds in Vegetables, Greasiness in Apples: Why it Happens and How to Prevent it, Insect Scouting Tips, Beginning Farmer FAQ –Soil Testing, Upcoming UME and UMES Events

The Brown marmorated stink bug (BMSB) Halyomorpha halys (Figs. 1 and 1a) was accidentally introduced into the United States in shipping containers arriving from Asia. The first confirmed specimen was collected in Allentown, PA in October 2001, although there is evidence that it was collected from black light traps in New Jersey as early as 2000.

Fruit and Vegetable News, Volume 12, Issue 7 (November 1, 2021)

Fruit and Vegetable News, Volume 13, Issue 1 (April, 2022). Topic in this issue are: Check for Allium leaf miner in onions and leeks over the next few weeks, Edema problem in high tunnel tomatoes, Using Plant Growth Regulators to Improve Apple Return Bloom, Botryis Fruit Rot (Gray Mold) and Crown Rot in Strawberries, Spring Pest Scouting in Strawberries, and Early Spring Vegetable Insect Scouting Tips.

What is superficial scald in apple fruits and what causes it? Physiological disorders correspond to abnormalities that can occur in any of the apple tissues, and can result in loss of quality, marketability, and profitability, leading to increased loss and wastage of apples. These disorders are caused by abiotic factors such as genotype/genetic background, maturity at harvest, orchard/preharvest factors, seasonal variations, and postharvest storage conditions. It is important to mention that pathogens or mechanical damage do not lead to physiological disorders.