Do you see a lot of russeted fruits with dark spots? PP nymphs produce the honeydew that drips on the fruit surface causing the russet.. Washington State University has a very nice factsheet.. Here is the link.. http://jenny.tfrec.wsu.edu/opm/displaySpecies.php?pn=120.. Mosbah Kushad, University of Illinois …
From: apple-crop [mailto:[email protected]] On Behalf Of Mohamed Merigh Sent: Monday, September 18, 2017 3:36 PM To: [email protected] Subject: [Apple-Crop] Problem with pear trees Hello from the Atlas Mountains in Morocco, I hope somebody on the list can help me find the reason our two-year pear trees produce a honey-like sticky substance. I was told it is pear psyllia, but I do not see any insects on the trees. Somebody else suspected gummosis. I am familiar with gummosis on cherry trees, but the sap we see on the pear trees is less viscous, and forms only a thin layer that drips on leaves. Thanks for your help, Mo
_______________________________________________ apple-crop mailing list [email protected] http://virtualorchard.com/mailman/listinfo/apple-crop
