Mostly sunny. Warmer. Highs 62 to 70 above 6000 feet to 69 to 74 below 6000 feet. Areas of winds northwest 15 to 25 mph. Gusts to 40 mph...Becoming 35 mph in the afternoon.
Many gardeners have been puzzled by the sudden wilting and death of tomato plants. Possible causes of wilting include lack of water, vascular wilts, tomato spotted wilt virus, walnut toxicity, or stalk borers. Tomato plants require approximately 1 inch of water per week.
Environmental stress from bouts of cool rainy weather, herbicide damage, severe pruning, sucking insects and viruses tend to cause tomato leaves to curl. Yo-yo watering and severe pruning may cause a tomato plant temporarily to develop thick, leathery leaves that curl upwards. In this case, the plant shows no effects on flowering, fruiting or growth. The plant should re-adjust within the week. <br /><br /><b>Herbicide damage</b>, particularly from <b>2,4-D</b>, may cause tomato leaves to curl first downwards and then upwards. In this case, the plant may show such effects as cat-faced fruit, stunted growth and twisted leaves.