Petunia surprises with a variety of palettes, pleases with a pleasant aroma, leaves no one indifferent. The plant is grown on balconies, flower beds, flower beds, garden plots, in the garden. One of the most common flower pests is aphid. A small insect can completely destroy a wonderful plant. How to deal with aphids on petunias, many gardeners, flower lovers are wondering.
Signs of infection
What aphids attacked petunia can be determined by their appearance:
- the plant stops developing;
- buds fall, flowers quickly fade;
- leaves twist, turn yellow, dark spots appear;
- petunia begins to weaken, wither, young shoots dry up.
On a note!
Black, green, red dots are visible on the back of the leaf and on the stem. These are different species of aphids and their larvae. Insects inhabit the colony, multiply rapidly. Over the entire warm season, up to 20 generations of aphids change.
By the end of summer, winged females and males appear. After the mating season, the males die, the females migrate to different plants, lay their eggs. In this state, the aphids winter. In early spring, larvae appear, which, after birth, begin to wreck.
In the photo below you can clearly see the infection of aphid petunias.
Biological, physical methods of struggle
You can get rid of aphids on petunias by destroying infected leaflets, knocking down insects with a stream of water, with your fingers.
For the destruction of pests attract natural enemies - ladybug, lacewing. This is done by regularly wetting the leaves with water or planting in the immediate vicinity of dill, other plants from the umbrella family.
Aphid is afraid of sharp persistent odors in order to scare it away from petunia, it is enough to plant some crops in the immediate vicinity:
- tansy;
- sagebrush;
- marigold;
- calendula
- bow;
- garlic;
- Daisies
- peppermint;
- parsley;
- tobacco;
- mustard.
Or plant a petunia near horseradish.
Begonia, viburnum, mallow, plum, cosmea, and linden strongly attract aphids. Planting petunia near these crops is not recommended.
Interesting!
During the tests, it was found that a hybrid of petunias successfully fights aphids. On the surface of the leaves, the stem there is a fluff that attracts aphids and immediately kills. To prevent infection of the flower garden, it is enough to plant a hybrid near natural petunia.
Folk remedies
Fight aphids with folk remedies You can at any stage of the plant’s vegetation. Use plants, vegetables, tops, spices, pungent substances, soap:
- Grate 100 g laundry soap on a coarse grater, add 1 liter of warm water. Dilute 1 liter of cold water, spray the petunia, paying special attention to the stems, the wrong side of the leaves.
- Dilute in 1 liter of water for 1 tbsp. spoon of baking soda, salt, add liquid soap.
- Mix spices - pepper, mustard, cinnamon, in equal proportions. Separately dilute 50 g of tar soap in 1 liter of warm water. Add as much liquid and all the spices.
- Dilute in 1 liter of cold water 5 g of ammonia or 100 ml table vinegar. It is necessary to process the petunia using a watering can with a wide tip.
- Dissolve in water tobacco powder or wood ash. Add a soap base. The same ingredients are sprinkled on the soil around a bush of flowers.
- Cut the tops of potatoes, tomatoes or tansy, wormwood, celandine. Pour 5 liters of water. Leave to insist 3 days. Put on fire, boil for 1 hour. Add soap.
Also effective are:
On a note!
It is necessary to spray petunia several times, with an interval of 5-10 days. Continue treatment for prevention every month - 1 time in 30 days.
Chemicals
Insecticides - this is how to treat petunia from aphids with severe infection.
However, it is better to do this during a certain period of vegetation. The best time is before opening the first leaves before buds are formed. In this case, beneficial insects will not suffer that the flowers will fly to pollinate.
Protection is valid for 20 days. Active components chemicals lose their properties under the influence of high temperature, light, part is washed away by torrential rains.
The most effective drugs:
- Actellik;
- means actar;
- Decis;
- Karate;
- Karbofos;
- Confidor.
Biological products from aphids:
- Fitoverm;
- Acarin;
- Arrow;
- drug Tanrek;
- Jaguar;
- Spark Bio.
Processing is allowed at any time during the growing season. Repeated spraying is done after 14 days. The effect is observed within 5 days after careful spraying of petunia.
Combination methods are recommended to be combined; insecticides should be used with a strong infection of the plant. Pay particular attention to biological methods.