Summer Brings Tomato Problems
Tomatoes are having some leaf spot disease problems: septoria leaf spot and early blight. Both cause spots and can cause the leaves to quickly yellow and drop starting at the bottom of the plant. Septoria causes ... [... more] University of Illinois Extension
Tomato Problems
Some years many of the early-season blooms simply fall off without setting fruit. This is the result of cool night temperatures (below 55° F). Some varieties, such as 'Pixie II', will keep their blossoms and set ... [... more] National Gardening Association
Tomato Problem Solver
These distinctive creatures are masters of camouflage. The four-inch larvae are stem green with seven or eight diagonal white stripes down their sides. Each stripe is shadowed by a row of black dots, and punctuated with a huge false eyespot and ... [... more] GardenGuides
Identifying Tomato Problems
In my experiences people often mistake leaf spot diseases for the fungal wilt diseases - fusarium and verticillium. The major difference is the wilt diseases will not show the spots on the leaves. However, as in the ... [... more] University of Illinois Extension
Tomato Problems
Irregular yellow blotches on the green tomatoes with the interior having pits or browning are caused by several factors. Tomatoes ripen poorly if the temperature falls below 60 degrees F. Compacted and overly wet ... [... more] University of Illinois Extension
Recognizing Tomato Problems
Psyllids (Figure 2) are more commonly found in eastern Colorado and are seldom a problem in western Colorado. They feed on tomato or potato plant sap and inject a toxic saliva that causes the characteristic "psyllid ... [... more] Colorado State University Extension