Aphids (lice) on jasmine and lavender

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Aphids (lice) on jasmine and lavender: jasmine

Also for the aphid attack on jasmine and lavender applies, as with all plants: If these plants are attacked by aphids, they are not really well. Whereby this malaise can certainly be measured in different degrees: First, according to the strength of aphid infestation, of course. Then it depends on which aphids feed on your plants. And on which plants the aphids have picked.

Strengthen plants & combat lice mechanically-biologically

Jasmine likes to be attacked during sprouting when it puts tremendous powers into rapid growth. Both types of jasmine so bristle in spring time just before plant juice, the aphids find delicious. In addition, it is not good for you that you are well used by the efforts of the spring shoot and have little power to fight against aphids. Therefore, both types of jasmine are regularly attacked by aphids, especially the False Jasmine (Pipe Shrub) of the black aphid, which almost seems to belong to him.
For the jasmine, this infestation is like a kind of spring cold, which he shakes off until the summer. He also gets more and more help, the further the year progresses: The aphids attract numerous beneficials, which in turn can multiply by the good nutrition in turn and the growing population of aphids eventually stopped again.
If jasmine or lavender are weakened in their defenses in some other way, the aphids could become overpowered. No more than a cold, but even as a full-blown flu, it can be classified, if jasmine and lavender are attacked by aphids in masses, perhaps even by green lice, which are very powerful leaf suckers.
If you are wondering why leaf lice are referred to lavender at all, but should actually keep away aphids: There are strongly fragrant lavender species that drive certain aphid species by their scent, the rose aphid should z. B. do not like the smell of Speiklavendel. But there are a total of 30 lavender species, and from these numerous hybrids have been bred, all these lavender plants have a slightly different scent. And there are innumerable species of aphids, and these too can produce intercrosses and do so. If the right lavender meets the right aphid, the lice are likely to be expelled, but there is also a good chance that the aphids in your garden will like your lavender.
In any case, the lice should not multiply unduly. For any excessive aphid infestation, therefore, the following considerations are obvious:
  • Are the plants in the right location?
  • Do you have mixed crops in your garden that, with your respective pests and beneficials, make sure that no pest is found anywhere in your garden?
  • Does the plant grow in the correct soil, is it watered correctly?
  • Is the plant properly supplied with nutrients?
When the culture conditions are all right, it is usually enough to give your plants some support, if you find the aphid attack very severe. You can do this by simply collecting or washing off the plant, depending on the sensitivity. Both jasmine and lavender can easily tolerate a vigorous shower with the garden hose, and you have already decisively weakened the aphid population.
You can help the plants with different plant extracts, nettle, vermouth extract, comfrey extract and many others act as an aphid and at the same time as a fortifying fertilizer.

Why not fight the aphid simply not chemically?

Jasmine and lavender are ornamental plants, and the new list of home and garden pesticides also includes numerous remedies for injecting these ornamental plants.

Control of aphids with pesticides

These can be means that are advertised on the Internet as a tip for environmentally sound aphid control: Some funds contain potash as active ingredient, which is nothing but pure soft soap. So, if you know where to buy soft soap without additives, you could mix the spray yourself, and the commercial products use 10.2 grams of potash soap per liter of pesticide. Other remedies use rapeseed oil, which, when mixed with water and sprayed on the plants, damages the surface of the aphids, causing them to die.
There are also numerous agents with "more effective substances" offered: Whether the active ingredient is abamectin, thiamethoxam, deltamethrin, dimethoate, imidacloprid or pirimicarb, are all toxic substances that are dangerous for bees and also for humans.The application may only be carried out under strict adherence to the instructions for use and the prescribed protective measures.
With regard to these remedies, restraint is also required by law: our new Plant Protection Act has made integrated plant protection a duty. One of the guidelines derived from this model could be colloquially formulated as follows: "Do not close with sparrows on cannons." That is a law, according to the current regulations, you would have to pay a fine if you take three aphids on a plant with lethal injection.

Disadvantages of pesticides

In addition, the "effective" above was deliberately quoted in quotes. First of all, all of these poisons are not very comfortable to use: if their harmful side effects are to be limited, they must be applied only to the prescribed amount to determine which, you have to expect a lot. Almost all of these remedies need to be applied in single plant treatment, depending on the plant, simply cutting off the affected leaves could be faster. And these remedies only harm the pests by direct contact. It's easy to imagine how many times an entire aphid colony comfortably rolls over the poisonous storm in a leaf.
However, with the application of the toxic substances, you set a completely different vicious circle in motion: They kill many beneficial insects that can not hide as well as the aphids. These beneficials can not destroy all the aphids that are still found in the area, so there will be more aphids next year, which in turn will be treated with more chemicals... at the end of this chain is a bare area, without lice, without plants, without life.

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