Recently, our newspaper has published the article about the cultivars and wild plants of the Turkmen flora, used to replace partially the agricultural products, which assist gardeners in combating garden pests and plant pathogens or protecting crops along with agricultural chemicals. At the request of our readers, the author will continue this theme and add insecticides to the list of such plants.
…If nature had a remedy for all pests, then there would be no reason to create artificial substances. However, synthesised compounds do not always turn out to be a panacea, i.e. a solution for all garden problems. The wisdom of the farmer lies in the combination and moderation of chemicalisation in agricultural production. Moreover, the farmer has to be careful not to overdo it with pesticides or nitrogen. Sometimes natural substitutes are no less effective, but they have less adverse environmental impact on soil, farm animals and insects-pollinators. However, it should be kept in mind that the plants owe these properties to the naturally occurring organic compounds in them – alkaloids, glycosides, saponins, phytoncides and essential oils, which are not to “pests’ taste”. Therefore, when preparing decoctions and infusions from these plants, the farmer must observe the same precautions as when working with toxic substances. The specificity of natural insecticides is that they quickly lose their toxicity once applied and do not accumulate in plants; they can be applied even in the period preceding the harvest. Moreover, decoctions of some species have a beneficial effect on the soil, destroying fungi, curing plants from many diseases and stopping pests from reproducing. Such plants grow at the foothills of the Kopetdag Mountains. They can be called helpers of gardeners.