Caterpillars on roses - how to process
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Roses, rightfully considered the queens of any garden, can decorate any site or flower bed. It is very annoying when, in the midst of fragrant flowering, they are subjected to a massive attack of pests.
Among the insects infecting rose bushes, green caterpillars are quite common. They not only spoil the decorative appearance of the plant, but they can do great harm and even cause the death of the plant. It is important to know the methods of dealing with these parasites and to prevent their massive invasion.
Caterpillars can spoil the appearance of a rose.
Why are caterpillars on roses dangerous?
Caterpillars on roses are dangerous for shrubs, as they feed on the pulp of plants and their buds. The result of their stay on the shoots are holes in the foliage. As a result, the shoots and the root system begin to receive nutrients with a delay. If untreated, the affected bush loses its shape and often dies.
Caterpillars fall on roses from deciduous trees. Their most active period is early spring. Insects begin to devour the petals, spoiling the appearance of the shrub. They get inside the flowers and eat the buds.
Signs of the appearance of green caterpillars
The main sign that a rose has been attacked by caterpillars will be the eaten pulp, while the veins remain intact. It can be:
- leaves eaten around the edge;
- burrows eaten out inside the leaf plate and in the stems;
- damaged buds and flowers;
- destroyed stamens and pistils.
Pests eat the pulp and buds of plants
Caterpillar-resistant rose varieties
Breeders have bred many varieties of roses that show good resistance to many pests and diseases. You can prevent the situation when roses eat green caterpillars, and not think about how to treat the bushes, by planting the following varieties:
- Angel;
- Westerland;
- Scarlett;
- Schneevitchen;
- Don Juan;
- Leonardo to Vinci;
- New Down;
- Simpati;
- Freesia.
Prevention of rose bushes from the appearance of caterpillars
It is easier to take care of preventive measures to prevent the appearance of caterpillars on rose bushes than to deal with them later. The most effective activities:
- Arrangement of traps for butterflies, whose larvae can subsequently infect the buds. In early spring they are hung in the garden.
- Vodka, ammonia, hot pepper will help scare away butterflies and caterpillars with their pungent smell.
- After the buds bloom, you need to regularly inspect the stems of the plant. This allows you to detect and destroy caterpillar masonry in time.
- Before opening the buds, the bushes are treated with a solution of Nitrofen, and after - with Bifenthrin.
Caterpillars on roses: how to treat from chemicals
If the caterpillars eat the leaves of a rose, what to do, gardeners decide, given the massiveness of the defeat. There are many chemicals with different effects. They actively fight the larvae and protect against repeated insect infestations.
In single cases of damage, you can collect pests manually
Nitrofen
At the initial stages of damage by green caterpillars, spraying with a solution of Nitrofen is used. It is desirable to carry out the processing in early spring when the larvae appear. The drug will protect the plant from re-invasion for about 2 months.
Both the rose bushes themselves and the nearby plants should be processed. For 10 liters of cold water, take 300 ml of the product. Spraying is carried out using a spray or spray bottle.
Aktara
It is a broad spectrum insecticide. It gets inside the leaf plate, so it is not washed off by rain and does not evaporate in the sun. 10 liters of water will require 8 g of Aktara. The substance acts for a month. After this period, processing can be repeated.
Chemical treatment must be carried out using protective equipment
Actellic
It is a common insect pest repellent for both garden and indoor plants. The advantage of the drug is that it can be used at any stage of the growing season. To prepare a working solution, dilute 2 ml of the drug in 2 liters of water. The most active impact on caterpillars occurs in the first two hours after spraying.
Actellik operates for about a month. To prevent the appearance of parasites, rose bushes can be sprayed in late spring - early summer.
Green caterpillars on roses: how to process from folk remedies
First of all, especially with a minor lesion, it is advised to carry out manual collection of insects. The more pests, the less effective this method will be.
You can treat a rose bush with folk remedies, which, unlike chemicals, are not harmful to either the plant or the human body. They can be used at any stage of the plant's life cycle.
Mustard powder
The substance can simply be scattered over the flower bed or a solution can be prepared from it. To do this, dry mustard and crushed laundry soap are mixed in water. It is necessary to spray the shrubs with this mixture in dry weather, and then the composition will act for several days. If insects are found again, the treatment is carried out every 3 days.
How to process roses from aphids and caterpillars, gardeners determine by the degree of damage to plants
Ash
This remedy is effective against plants affected by green, black caterpillars, aphids and leafworms. Wood ash is scattered over the flower bed and thoroughly watered. This is how the ash components get into the plant sap, making it bitter and unpalatable for parasites.
You can also spray the plant itself - the mixture irritates the caterpillars, so they try to get away as soon as possible.
Sagebrush
To prepare wormwood infusion, 1 kg of wormwood is poured into 3 liters of water and boiled for 20 minutes. After 2 hours, when the bitter broth is infused, they spray the rose with it and water the soil around the plant.
Burdock solution
To prepare the product, a third of a bucket of burdock leaves is poured to the top with water and allowed to brew for 3 days. After the expiration of the period, the infusion is filtered and irrigated with the shoots of roses.
Nightshade
An effective remedy for caterpillars is a solution of nightshade. To prepare it, 5 kg of plant leaves are boiled in 10 liters of water for 4 hours. Then the hood is filtered and diluted with 4 liters of water. The resulting mixture is treated with roses.
Laundry soap solution
This remedy is often used when pests appear in a flower bed and on domestic plants. Laundry soap is crushed on a grater and filled with warm water. After dissolving the pieces of soap, the entire affected plant is irrigated with a spray bottle.
In the initial stages of the appearance of caterpillars, you can use folk remedies
Garlic
Young garlic greens are used to fight insects. It needs to be poured with water and allowed to brew for 24 hours. After straining, the infusion is applied to the entire shrub. They also cope well with pests and solutions from onion husks, tops of tomatoes and potatoes.
Caterpillars and other insects on roses cause a lot of problems during the season. They devour the leaves and buds of the plant, hinder its normal development. Often, an invasion of caterpillars causes the death of a bush.
Folk remedies and chemicals help to get rid of uninvited guests on roses. In isolated cases, you can resort to manual collection of insects. Preventive treatment of rose bushes in early spring can significantly reduce the risk of pests.
