Uneven moisture levels cause a calcium deficiency in the fruits. Keep evenly watered and put mulch around the plants to hold moisture. The leaves of the affected plant curl upwards and the plant will be stunted. Pollination often suffers when temperatures are high. Bell peppers, tomatoes and squash are most commonly affected.
Flowers dry up and fall off, leaving no developing fruit.
Keep plants watered and healthy and fruit production will resume when the temperatures drop. Fertilize lawns monthly through the summer. Bermuda grass needs to be watered about every 3 days during the heat of the summer. If you notice sizable wilted patches of dull, blue-green grass that does not spring back after being walked on, it is time to water. Give lawns special attention where tree roots compete for moisture.