Nothing can decorate a summer cottage or garden better than gladioli, which proudly rise in the garden among other flowers and plants. Due to the variety of colors and varieties, this bulbous plant is a favorite when decorating the site. Unfortunately, a multi-colored sword flower (this is how the name of the plant is translated from Latin) susceptible to small parasites that can destroy even a large flower bed in a short time gladioli. What scourge should be protected from these magnificent flowers?
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Gladiolus thrips
Gladiolus thrips are especially dangerous for gladioli. These parasites not only lead to stunted flowers, feeding on their greens, but also carry various diseases, which in a short time can destroy large areas of planted crops.
Thrips are small (up to 1.5 mm in length) insects of a dark color with fringed wings, which hide in the leaf axils and inflorescences of an infected plant. Their white-yellow larvae can often be seen next to them, which they lay in large numbers. Gladiolus infected with a pest has a sad appearance - the inflorescences do not form properly and dry out, and the stems with foliage become withered.
As soon as a pest is noticed on a plant, it is necessary to immediately take comprehensive measures, which include:
- processing of corms before storage and planting;
- soil preparation before planting flowers;
- processing of planted flowers.
Pest control
Proper storage of gladioli corms prior to planting will help protect the flowers next year. Since thrips are afraid of a drop in temperature (after the autumn cold snap, pests hide in the scales of a gladiolus bulb), the tubers should be dug out before a steady autumn cold snap. After that the spoiled "harvest" is necessary for 30-40 minutes. place in the "Karbofos" solution. The recommended concentration of the drug is 40 g per 10 liters of water. Then the bulbs should be washed in clean water and, after drying, stored in a cool place - the temperature should not exceed + 5-6 +С.
Before planting, the procedure for processing the planting material must be repeated, for example, "Phosphorin-K". Thrips is also susceptible to alcohol and garlic. In a cloth soaked in alcohol, it is recommended to keep the bulbs for several hours to destroy the pest. Garlic juice can be used for the same purpose.
It is recommended to prepare the soil for planting gladioli in the fall. Be sure to collect all the leftovers from last year's flower beds, then place them in one place and burn them. Deep digging of the soil in the bed where the flowers grew should be done at the end of the summer cottage season and immediately before planting a new crop. At the same time, it is recommended to constantly change the place where gladioli will be planted.
The processing of ascended plantings should be carried out alternating insecticidal preparations, so that the plant will not get used to the active substances that make up them. Recommended weather conditions for processing are warm calm weather. It is on such days that thrips appears in large quantities on the leaves of infected plants. For the treatment of gladioli from pests, drugs such as:
- "Karbofos";
- Inta-Vir;
- "Confidor";
- "Karate";
- "Fitoform";
- "Decis";
- Actellik.
Experienced summer residents also note that spraying plants with an infusion of tobacco dust or makhorka helps well against adversity.
Do you plant gladioli on the site?
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Read about the lush flower beds in the following article:Lush blooming flower bed: without asters, gladioli and marigolds