If you tried all the “soft” control measures, but harmful insects still multiplied excessively, and there was a direct threat over the landings, there is no other way but to use pesticides.
Of course, chemical pest control methods, even the most modern ones, have a lot of disadvantages and side effects.
But what if we can’t cope with the problem without them?
CHEMICAL PESTICIDES: THE BEST DRUGS
During chemical pest control, plants are sprayed with a 0.2% solution of malathion or a 0.2% solution of Rotor.
One of the best drugs is considered Inta-Vir. For more effective adhesion add 40 g of soap per 10 l of solution. It is possible to treat plants with sulfur or its preparations (anabazine or nicotine sulfate).
During the growing season during the chemical pest control, plants are usually treated three times: when the leaves bloom, during budding and after flowering. If this is not enough, the number of treatments is increased. When working with insecticides, precautions should be taken to avoid poisoning people, animals, food. Spraying plants with pest control chemicals is carried out in respirators, goggles and special clothing. At the end of the treatment, wash your hands thoroughly and take a shower.
Planting material before laying for storage is subjected to disinfection – incubated for 20 minutes in a 0.2% solution of chlorophenols or another insecticide.
If planting material is affected by pests and diseases, apply the combined formulations: Fundazol (0.2%) plus Roger or Antio (0.2%).
Bulbs affected by a tick are etched with a chemical agent for controlling plant pests such as a 0.2% solution of Clean. To prevent re-infection during storage, it is useful to dust planting material with sulfur – 20 g per 1 kg of bulbs.
In bags with corms can be put naphthalene, it works especially well against thrips. The room in which planting material will be stored is carefully cleaned and disinfected: formalin (1%), iron sulfate (5-8%), bleach (400 g per bucket of water, insist 2-4 hours). Shelves, trays, boxes and work equipment are also disinfected.
The treatment of bulbs affected by nematodes has features. 3 weeks after digging, they are heated in hot water at a temperature of 43–44 ° С (small – 2.5 hours, large – 4 hours). To prevent damage to the bulbs during heat treatment, they are pre-stored at 30 ° C, and immediately before processing for a day, they will be placed in warm water. Particular importance is attached to preplant planting of bulbs.
Culling of planting material with obvious signs of pest and disease damage is performed. The remaining bulbs are disinfected by immersing them for 5 minutes in hot water (50 ° C). You can use such a chemical method of controlling insect pests as treating plants with insecticide solutions for 20 minutes (0.4% solution of malathion or chlorophenols, 0.2% solution of Rogor). For the prevention of fungal diseases before planting the bulb, it is recommended to withstand 30 minutes in a 0.2% solution of Fundazole.