University of Delaware3 年
Home Orchard Production – Apple, Pear, and Stone Fruit Disease Management
Left: Fire Blight on Pear, Right: Peach Leaf Curl, Images by N. Gregory Left ... boscalid along with an insecticide), applied three weeks before harvest for brown rot. Combination tree fruit spray ...
来自MSN2 个月
Gardeners told to look out for signs of deadly disease on apple and pear trees
Gardeners with apple or pear trees ... canker can kill a tree within a single season and spread to others. The Royal Horticultural Society explains: "Apple canker is a disease caused by a fungus ...
来自MSN2 个月
Warning to anyone with apple or pear trees in garden to check them for fatal disease
Gardeners with apple or pear trees ... canker can kill a tree in a single season and spread to others. According to the Royal Horticultural Society: "Apple canker is a disease caused by a fungus ...
WLWT12 天
Have one of these trees in your yard? Experts say you should cut them down
Blooming trees and flowers are a classic sign of spring, but one flowering tree actually causes an ugly invasive problem.Bradford Pear trees are easy to spot in Ohio, with many lining the local ...
Phys.org10 天
As many as 30% of beech trees killed by beech leaf disease, study shows
A decade after the emergence of beech leaf disease ... also found that tree mortality was higher in plots with denser beech populations, suggesting that crowding or disease transmission may ...