|Readers Thompson seedless grape cupped leaf|
Do you have any suggestions for watering my fruit trees? I have also found that my Thompson seedless grapes have been turning up in brown and some of the leaves have also been curling in. I attached pictures of both issues. What do you think could be my problem?
A. This seems to be the year for grape problems. Grapes do wonderfully well in our climate as long as the soil is prepared well at the time of planting, they get adequate amounts of water frequently enough and you cover the surface of our soil with organic mulch.
|Red Flame grape at the Orchard|
We did have some strong winds earlier that can cause the kind of damage you mentioned and that appear in the picture you sent to me. Watch the new foliage as it emerges. If it looks healthy, don't worry about the older foliage. That is old damage that was just temporary.
You talk about watering over a certain length of time. This is like me asking you how many minutes of coffee or tea you drink. Or, if you don't drink coffee or tea, whatever beverage is your favorite. We don't talk about minutes or hours when we talk about drinking something. Likewise, when we give plants a “drink of water” we should not be talking about time but instead the volume of water we apply.
I don't know how many drip emitters you have and I don't know how much water each one delivers in an hour. So I am going to guess you have four emitters for each tree and they deliver 4 gallons of water in an hour. This would mean that in one hour these trees would receive 16 gallons. For a medium-size tree, this is far too little.
|Drip irrigation on grapes on the ground with mulch|
Drip irrigation is extremely accurate in applying the water. Much more accurate, efficient and consistent than using a hose.