Summer is most people’s favorite time. However, it does bring with it some complications. One of the most common is aphid appearance on outdoor plants that are located in gardens or orchards. (They can also appear indoors). There are more than 900 species in Europe and about 4,700 species worldwide.
What are aphids?
Insects no larger than 33mm in color green, brown, black or yellow. They land on plants because their food source is the sap from the stems, leaves and tender flower buds. When they appear, the leaves turn with yellow spots and the stem and buds are easily deformed. Each aphid can live between one and two months. During that period they can produce between 40 and 100 offspring.
These pesky, and almost priceless critters, secrete a sticky substance that attracts ants and fungus sooty mold spp or black powder. It occurs more frequently in spring and summer, due to the dry environment that is generated.
To know if your plants are being attacked by aphids, check the underside of the leaves, paying special attention to new plants that are just growing or are still sprouting. Being healthier and more mature, they are usually «easy targets» for these insects.
This is how the aphid weakens your plants
- They weaken the plant, delaying its growth.
- They are transmitters of viruses.
- They deform leaves and new shoots.
- They can reduce crop production.
- They cover the plant in sticky molasses.
- They attract ants.
- They facilitate the appearance of the bold fungus.
Home remedies and quick to kill these insects
- Garlic infusion. The preparation is so easy. Pour a liter of water into a saucepan and put it to boil for half an hour. Add five cloves of garlic, very well crushed. Once the water is boiled, let it cool, strain the garlic and pour that water over a sprayer. Apply the content on the plant.
- Onion water. Like garlic, onion is effective against fungi and aphids. Chop a medium onion per liter of water and boil it for 5 minutes. Once cold it can be applied.
- Pest repellent plants. Basil, sage, coriander, rosemary, garlic, lavender, lemon balm and mint are repellants for aphid pests.
- Tansy. With 300 grams of tansy and 10 liters of water make an infusion; we boil the water and add the boil, let it rest and spray the plants with it.
- Chamomile. With chamomile we are going to do the same as the previous case, but without spraying. In this case, dilute on the plants.