Ecological control of pests and diseases in the summer garden

Summer is a splendid time for the garden: the sun, heat and long days favor the growth of many crops: such as tomatoes, peppers, eggplants or zucchini., but it is also the favorite season of many pests and diseases. If we want to maintain a healthy and productive garden without using chemicals, it is necessary to know strategies for ecological control of pests and diseases in the summer garden.

🐛 Common pests in summer and how to treat them ecologically

1. Aphids
They usually appear on tender shoots, sucking the sap and weakening the plant. They can also transmit viruses. They appear in stands.

They secrete a molasses that ants really like, and these ants offer them protection from predators.

✅ Ecological solutions:

As a preventive measure, reservoir plants, such as legumes and aromatics, can be incorporated.
Sulfur is a very good repellent, both for aphids and many other insects and fungi, which is why it is always recommended to carry out treatments from the beginning of crop growth.
Potassium soap diluted in water (5 ml per liter) applied with a sprayer.

2. Whitefly
Small insect found under the leaves (difficult to treat). It causes weakness and encourages fungi such as powdery mildew, due to the molasses they also secrete.

✅ Ecological solutions:

Potassium soap
Paraffin oil
Neem oil (following recommended doses).
Crop rotation and adequate spacing to avoid overly humid environments.

3. Lepidoptera larvae (such as the tomato moth)
They bore into fruit and are leaf miners, especially on tomatoes.

✅ Ecological solutions:

Sulfur also has repellent properties.
Bacillus thuringiensis, a natural bacterium that attacks larvae.
Cultivation of repellent plants such as calendula or thyme.

🍄 Most common fungal diseases

1. Powdery mildew
It forms a white coating on the leaves. It is common on zucchini and pumpkins.

✅ Natural solutions:

Apply sulfur and copper as a preventive measure
Avoid overwatering and promote ventilation.

2. Mildew
It stains the leaves of tomatoes or potatoes, and can cause them to wilt.

✅ Ecological control:

Apply sulfur (with caution, not during peak heat hours).
Treat the first stains quickly and remove affected parts.

🌸 Good practices to prevent problems

Crop rotation: don't plant the same thing year after year in the same place.
Companion plants: mix species that benefit each other.
Well-made compost: promotes healthy and resistant soil.
Efficient irrigation: Best irrigation by drip or early in the morning.
Constant review: Detecting the first signs can prevent an infestation.

🌱 The value of local varieties

The traditional varieties they often have a natural resistance greater to local climate conditions and, therefore, also to pests and diseases. Cultivating them not only preserves biodiversity, but also helps us have a more resilient garden.

🧺 In summary

Controlling pests and diseases in the summer garden in an ecological way is possible with good observation, prevention and some simple natural resources. The key is to understand the ecosystem of our garden and work with it, not against it.