Tips & Tricks

Prevent late blight in tomatoes


Growing tomatoes yourself is fun, but not if they are affected by late blight. However, if you prevent properly, you shouldn't have any problems with it.

Protect your tomatoes from moisture

When summer is finally here and the tomato plants produce yellow flowers, this makes the gardener's heart beat faster every year. Because then it doesn't take long for the plants to start growing small tomatoes. When they are finally there and they develop quite well, however, a mushroom often makes a dent in the gardener's work. Because it often rains, the leaves of the tomato plants cannot dry out. The result: the late blight is spreading.

Typical symptoms of late blight

Infestation with late blight is usually easy to spot. Typical symptoms are brownish spots on the leaves and on the stem. In addition, the leaves on the underside are often covered with fine mushroom hairs. A short time later, they turn completely brown until they wither completely. Once the leaves are infected, it doesn't take long for the fruit to be damaged. They turn brown and there is no longer any question of consumption. Incidentally, not only the ripe fruit is affected. The green tomatoes are also not immune to the disease.

This is how you can prevent an infestation

Tip 1 - choose the right location:

Always plant the tomatoes in a sunny, but sheltered place in the garden, so that the leaves can dry quickly after a downpour. The tomato plants should not be in the shade of larger plants.

Only plant tomatoes in loose soil. This way you prevent waterlogging from occurring from the outset. Therefore always work sand in heavily loamy soils.

Tip 2 - stretch the film roof:

So that the leaves do not get wet at all, it is advisable to stretch a film roof or set up a tomato house. In this way, the tomatoes get enough sun without moisture getting on the leaves.

Tip 3 - don't plant tomatoes too densely:

Break out leaves that are too close together. This gives the tomato plant more air and light. Regularly thinning out the tomatoes is important.

Always plant the tomatoes at a sufficient distance from each other (60 to 100 cm). The closer the plants are to each other, the higher the risk that an infected tomato plant will infect the neighboring ones.

Tip 4 - always pour from below:

When watering the tomatoes, only water the soil. The leaves and fruits must not get wet.

Tip 5 - change location annually:

Grow tomatoes and potatoes somewhere else in the garden every year. The two vegetables are among the main host plants and the mushrooms often remain in the soil for several years. Always plant tomatoes and potatoes as far apart as possible.

Tip 6 - disinfect buckets and tomato sticks:

Thoroughly clean planters and tomato sticks from the previous year, as the spores of the mushroom can overwinter. Simply pour boiling water into the buckets and over the sticks.

Tip 7 - remove infected plant parts immediately:

If you have found infected leaves or fruit, remove them immediately. Do not dispose of them in the compost, but in the household waste.