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 ...

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.

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.

Underwatered plants will usually have browning, crispy leaf edges." If you notice that the plant is dry and crispy then it's likely that you need to water the plant more, rather than less.

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.

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, ...

When plant problems are noticed, positively identify what’s causing the symptoms and determine if control is needed. If so, decide which methods work best. A pesticide may not be the best choice.

"Corn gene conferring resistance to multiple plant leaf diseases." ScienceDaily. ScienceDaily, 24 July 2017. <www.sciencedaily.com / releases / 2017 / 07 / 170724113600.htm>.

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.