Powdery mildew is a serious fungal disease of cucumbers and other related plants. It can completely wipe out an entire crop in a garden if nothing is done to control it. Regular rains, warm temperatures and high humidities this season have come together to make ideal conditions for powdery mildew development.
The standard method of battling this disease is applying fungicides of one type or another. Some are chemical, others are plant derived and there’s even bacterial fungicides. The drawback to each of these fungicides is that you have to apply them early when the plants are young and continue using them through the rest of the season. But there is another way.
Recently I had a chance to compare cucumber plants growing in two nearby gardens. Neither garden had any fungicide applied to them.
In the first garden, the gardener is growing a standard, run-of-the-mill variety of cucumber obtained from a garden department somewhere. The plants in that garden were nearly overwhelmed by mildew.
In the second garden, the cucumbers show little sign of mildew. That gardener opted to grow a mildew resistant variety from seed that he sowed directly in the soil.
The difference between the two crops is very impressive. If you are one of those gardeners who have given up on growing cucumbers and don’t like to spray fungicides, then planting resistant varieties is the way to go. Really, it’s something every gardener should look for when choosing cucumber seeds. Make a note of it in your garden journal as reminder for next year.