Any greenhouse owner will tell you that the difficulties in growing under the film are not less than in the open ground. As for cucumbers, it is aphid becomes the most frequent uninvited guest. It is possible and necessary to combat this problem, and all the work is designed for several stages.
Aphids on cucumbers in a greenhouse - what to do?
Why is this problem becoming ubiquitous, and once getting rid of aphids, one has to come back again and again to the question of its destruction? There are only two reasons. Firstly, this pest reproduces incredibly fast, and only in a year twenty generations successfully develop. In addition, larvae and females comfortably hibernate on plants and vegetables in greenhouses and vaults. If your site has winter-green weeds, they can become a shelter for pests for the cold season.
It turns out that on the one hand aphids on cucumbers do not appear in the greenhouse, but literally wake up. And on the other hand - the generation is changing one after another so quickly that it will be difficult to refuse chemicals. But this does not mean that vegetables that are environmentally safe are an unrealizable dream. The best remedy for aphids on cucumbers in the greenhouse is a comprehensive approach and work in several directions at once. They will be discussed below.
How to destroy aphids on cucumbers in a greenhouse?
Experienced vacationers are advised to always solve problems on the principle of "prevent easier than to cure". Therefore, it is necessary to carry out certain organizational measures in greenhouses, prevent pests, use some techniques of agrotechnics to increase the resistance of plants to attacks by "guests", and, of course, a number of preparations.
Under the organizational and economic measures should be understood the timely detection of aphids. Already from the very growth of seedlings every week, we check leaflets for the presence of these insects, and since they are rather small, one can even use a magnifying glass. After pasynkovaniya, removal of weeds and other superfluous plant material, we always burn everything.
Preventing aphids on cucumbers, like any other pest in the greenhouse, is easier than dealing with it. For prophylaxis after the vegetative period, we will use formalin solution. If you have an anti-corrosion greenhouse, it can be treated with sulfur gas. We always try to observe hygiene and disinfect shelving, containers for growing seedlings , as well as inventory, with chlorine lime. You plant 400g in a bucket and let it brew for about 4 hours. Next, the liquid is used for treatment from an atomizer, and the precipitate is used as a mixture for processing the very construction of the greenhouse.
Before processing cucumbers from aphids in the greenhouse, try applying some agronomic cunning to them. Increasing the resistance is not so difficult. Carefully monitor the temperature and humidity in the greenhouse, it is important to always comply with the recommended standards. Do not neglect the timing of planting a variety, do not skimp on complex fertilizers. Watering is carried out only with warm water. With cooling or the arrival of damp weather, we reduce watering and do not over-moisten the soil.
And finally, you need to pre-arm yourself with what effectively can be processed cucumbers from aphids in the greenhouse, namely drugs. As a rule, paired with all listed safety measures, there are enough biological products. One of the options, how to deal with aphids on cucumbers, to hang glue traps yellow in the greenhouse. They need to be hung around the perimeter and changed once every two weeks.
During the vegetation period, we cultivate the plantations Aktofit three times. Be sure to wet both sides of the sheets. The last treatment can not be later than a few days before harvest. And still to struggle with aphids on cucumbers in a greenhouse it is possible by means of its parasite, namely энкарзии.