This year has been extremely hot which is great for our luffa, peppers and tomatoes but many of our squash plants are suffering. We have gone 55 days in a row with temperatures in the 90s. Very little clouds to give the plants a break. The tender flowers of the Butternut squash are wilting and drying out before they get pollinated. The soil is also drying out faster than usual. It doesn’t help that our crop rows are on a slope which causes water to move away from some of the plants.
The black fabric weed block we use is very helpful for warming up the soil early which is necessary in our short growing season climate. It extends growth early on and also late in the season. Unfortunately with the high temperatures I believe the squash production is down due to heat stress.
We finally came up with the idea to take some of our old, torn hoop fabric cover, which is thin and white, and cover the black wee block around the Butternut squash. This helped reflect back some of the powerful sun rays so there was less heat.
It worked! The plants quickly produced 6 new Butternut squash.
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