Dear Denise: How are grapes pollinated —n by insects or, like corn, by winds? This past spring, I had many bunches of grapes on my vines. I realize that we had a very wet spring, but I thought the ...

Concord) that has had a problem the last few years. It gets lots of grapes that grow to full size, but then about 90 percent of them turn black and shrivel up. What problem do I have? Concord’ ...

Q: Are there any varieties of grapes that are naturally resistant to the black rot disease that ruins the fruit? I am reluctant to spray them, and my past experience has been that keeping them pruned ...

Grapes are one of the most difficult fruit to grow here in Kentucky. A disease called black rot is by far the most common disease problem on grapes. Black rot (caused by the fungus Guignardia ...

Q: My grapes look fine as they begin to grow. Then when the fruit is half to two-thirds grown, brown discolorations appear. Then the grapes turn dark and shrivel. What’s the problem? A: These symptoms ...

AMES, Iowa | Grapes grow well in a wide range of soil conditions but do best on well-drained soils. Horticulturists with Iowa State University Extension and Outreach answer questions about growing and ...

Grape rot fungus costs the global wine industry millions each year. Amid health concerns over chemical solutions, a natural alternative is being tested in France's Bordeaux region - with positive ...