The fungus Fusarium infects crown, root, and fruit tissue of pumpkin. Symptoms have been observed on Long Island in fields where there is limited rotation, such as those used for u-pick, suggesting that it ...
Read More
The ‘Late blight’ of Spinach Developing Now in Northeast. See It? Report It! Manage It! Downy mildew has been found recently in spinach at several farms in the northeastern U.S. This devastating disease has not ...
Read More
From Margaret McGrath (mtm3@cornell.edu), reposted from CCE Suffolk Long Island Gardening (2016-09-16): If your basil leaves have turned yellow and display a dark-brown sooty growth on their underside, then your plants have downy mildew, a ...
Read More
Symptoms caused by Potato Virus Y (PVY) vary quite extensively in appearance and also severity, from negligible to severe. This is due to the strain (type) of PVY causing the infection and the potato ...
Read More
There is a new virus that I want you to be aware of. TCSV (tomato chlorotic spot virus). It is related to TSWV and INSV (all tospoviruses), sufficiently closely that a plant with TCSV ...
Read More
Powdery mildew is the most common and widespread disease of this large, diverse crop group occurring in both field and protected-culture (greenhouse) crops. White, talcum-like, powdery fungal growth develops on both leaf surfaces and ...
Read More
From Margaret McGrath (mtm3@cornell.edu), reposted from CCE Suffolk Long Island Gardening (2016-04-26): The rototiller is a popular tool used by home gardeners to control weeds, incorporate fertilizer and lime, and loosen up the soil for ...
Read More
From Margaret McGrath (mtm3@cornell.edu), reposted from CCE Suffolk Long Island Gardening (2016-06-06): Late blight-resistant tomato variety Jasper (left) and susceptible SunGold (right) severely affected by late blight. Both images taken on 9 Oct 2013 in ...
Read More
We just added two new photo galleries from problems detected this spring: Lettuce crown girdling Potato Blackleg Caused By Dickeya
When the amount of calcium being moved into fruit is insufficient to support growth of the fruit, tissue typically at the blossom end turns brown and then black, and becomes sunken and leathery. Varieties ...
Read More
