I have a grapevine that's at least 50 years old. Each spring it blooms and produces an abundance of grapes. This sprin it bloomed as usual, and the as if overnight, I noticed the leaves wilting and eventually dry up. Not all the branches from the main trunk look dead. The leaves don't appear to have any disease growing on them. Should I cut off the dead branches, and hope the vine regenerates itself?
Though you many not be able to see any disease, I would suggest spraying with a general purpose fruit spray.
There are several diseases that could cause leaf wilt and die off.
These links will help you pinpoint the issue.
http://www.ct.gov/caes/lib/caes/documents/publications/fact_sheets/plant_pathology_and_ecology/disease_control_for_home_grape_plantings.pdf
http://www.ipm.msu.edu/grape_diseases
My garden grows well but flowers aren't producing fruit. Grapes, squash, beans, cukes, peas. I live in a Hollow bordered on two sides by a big year round creek in a deciduous forest in western North Carolina. The soil is somewhat sandy but seems rich. I feed the plants with Miracle gro and still poor results. What's missing?
Your soil may have a phosphorus deficiency . Here are a few articles that may help
http://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/phosphorus-plant-growth.htm
http://www.gardeningknowhow.com/plant-problems/environmental/plant-not-blooming.htm
http://www.gardeningknowhow.com/edible/vegetables/pepper/no-flowers-or-fruit-on-peppers.htm
This is 2 years in a row this has happened. Just bought a house. Wanting to say the vine is over 30 years old. I found it covered up in other vines
Diseases that cause grapes to dry on the vine usually begin with other symptoms, including leaf scorch or dried canes. These diseases are made worse by humid or rainy weather.
Diseases that cause grapes to dry on the vine usually begin with other symptoms, including leaf scorch or dried canes. These diseases are made worse by humid or rainy weather.
Diseases that cause grapes to dry on the vine usually begin with other symptoms, including leaf scorch or dried canes. These diseases are made worse by humid or rainy weather.
https://www.gardeningknowhow.com/edible/fruits/grapes/preventing-pierces-disease.htm
https://www.gardeningknowhow.com/plant-problems/pests/insects/glassy-winged-sharpshooter-control.htm
It is a 2year old vine, was doing well but now seems to have also stopped growing.
Can you include photos? This can help me to see the damage and help to suggest what to do about this.
In the meantime, this collection of articles will help you to craft your own pest control, along with many other organic gardening tips: https://www.gardeningknowhow.com/special/organic
my grapevine grows great and I have very good grapes until just before they start to ripen then they start to rotten .very few make it to ripe.the vine is great just no grapes to eat.what can I do for this.
This could be Sour Grape Rot.
These links have more information.
https://www.gardeningknowhow.com/edible/fruits/grapes/treating-grapevine-problems.htm
https://www.gardeningknowhow.com/edible/fruits/grapes/summer-bunch-rot.htm
https://www.gardeningknowhow.com/edible/fruits/grapes/black-rot-grape-treatment.htm
My grapevines had numerous flowers this spring, most of which were fertilized and started to form berries, but a week later most of the tiny berries and flowers had disappeared and all I have left was stalks with weblike thread covering around the remaining portion of the bunches. I live in a rural area woodlot; zone 5A/4B. The 15 yr old vine is covering a small wooden archway and is protected from the prevailing west wind by a couple of 20 year old Gleditsia triacanthos var inermis. I have had very small quantities of white grapes from this vine in the past but have not had the quantities of flowering before this spring. I have mulched around the base with home made compost this growing season. Any ideas to promote more fruit please. Sorry, no photos. Regards Pat Nicholson
I can't determine the issue from your description. I would suggest talking with your County Extension Service.
The links below will help you.
https://www.gardeningknowhow.com/extension-search
https://www.gardeningknowhow.com/edible/fruits/grapes/treating-grapevine-problems.htm
https://www.gardeningknowhow.com/edible/fruits/grapes/mites-on-grapevines.htm
The vines are 8 years old. Have produced grapes every year but this year grapes are growing in great clusters but are falling off when green. We prune as we should. We had a lot of rain this year. There is no fungus or anything on the vines or grapes or leaves. I read all 21 pages of your posts and there is nothing like this. I didn't include a photo because the grapes are green and perfect.
There are several possible causes of premature fruit drop including:
- too much or too little water
- nutritional deficiency or excess (such as too much nitrogen)
- fungal problems such as powdery mildew (look for a white haze on fruit)
- insect feeding
- poor pollination
- a lack of light (grapes need full sun)
So, there may me one or more causes. A soil test would be smart to look at the nutritional issue. Inspect the vines for insects or fungal growth. Encourage pollinators with diverse plantings.