Too little water can also cause cucumber leaves to wilt and turn yellow, but the leaves may turn brown at the edges and feel crisp and dry. Aim to give cucumber plants an inch of water each week from ...

Filip Gazdik, Eliska Penazova, Jana Cechova, Miroslav Baranek, Ales Eichmeier, Quantitative real-time PCR assay for rapid detection of Pseudomonas amygdali pv. lachrymans in cucumber leaf rinse, ...

Excess salts not taken up by the plant remain in the root zone, which can cause the leaf tips to turn brown. This can happen with soil-grown plants too.

There are also a variety of leaf spots. These fungus diseases can be controlled, if needed, with a broad-spectrum fungicide labeled for use on vegetables, such as copper or chlorothalonil.

‘Yellowfin’ is a disease-resistant vegetable that can stand up to cucumber mosaic virus and powdery mildew. Keeping an eye out for squash bugs and squash vine borers will also keep the plants healthy.

There are seven different pathogens (disease-causing organisms) that cause plant diseases, but I’ll only cover the ones that become worse in the rainy season, fungal and bacterial plant diseases.

Cucumber mosaic virus is also a possibility. Look for stunted plants, mosaic patterns on leaves (light/dark, yellow/green); breaks in the flower color and/or yellowing along the leaf veins.

Which month should you plant cucumber seeds? Cucumbers are warm-weather crops. Aim for late spring or early summer to begin planting. The soil should be about 65 degrees F.

There are also a variety of leaf spots. These fungus diseases can be controlled, if needed, with a broad-spectrum fungicide labeled for use on vegetables, such as copper or chlorothalonil.