Some tomatoes fare better than the rest in hot weather


A fertile, humus-rich soil kept thoroughly and consistently moist is a basic first step toward stress-resistant tomato plants.

Article content

Q. Since the first wave of hot weather this summer, the leaves on my tomato plants have shrivelled and curled into inward rolls. What can be done about it?

Article content

A. Some tomato varieties are more prone to leaf rolling than others, especially in hot, dry conditions. The leaf rolling can be a means of reducing a plant’s exposure to the sun.

If you are growing more than one variety, take note of the ones that have remained in the best shape despite the cool, late start to the growing season followed by days of fairly fierce heat. Also, monitor which varieties go on to produce the best harvest of tomatoes. Make a note to grow again the most resilient and productive varieties.

A fertile, humus-rich soil kept thoroughly and consistently moist is a basic first step toward stress-resistant tomato plants. Mulching with a high quality compost as the soil warms in late spring or early summer is helpful too, as is a soil-cooling, sunlight-deflecting layer of straw laid loosely over the mulched root area.

Article content

Q. I’ve heard that apple trees can be pruned in summer. True?

A. I prune my apple trees twice in summer, to shorten new growth — once in early to mid July, after the trees have shed excess fruit in the “June drop,” and again at the end of July or early in August. I avoid pruning in wet weather and in high temperatures.

Most people do all or most of their apple tree pruning in late winter, before the trees’ growth buds begin to swell. This dormant season pruning, especially if it is fairly severe, stimulates an abundance of new growth, including the straight-up growth called water sprouts.

Summer pruning does the opposite. It helps to keep the trees compact as it also removes aphids that set up housekeeping in the succulent new tip growth. Another advantage: Summer pruning helps to protect trees from disease because pruning wounds heal quickly in warm, dry conditions.

Leave a comment

x
SMM Panel PDF Kitap indir