How should Fitoverm be prepared for treating cucumbers against spider mites? - briefly
«Fitoverm» should be diluted to 0.5 ml per liter of water, mixed thoroughly, and sprayed onto cucumber leaves until runoff, preferably during low‑temperature periods of the day. Re‑treatment is required every 7–10 days, with a minimum interval of 48 hours after precipitation.
How should Fitoverm be prepared for treating cucumbers against spider mites? - in detail
Fitoverm must be mixed according to the label specifications for cucumber foliage treatment against Tetranychus urticae. Use clean, lukewarm water; a typical dilution is 5 ml of product per 10 l of water, delivering an active ingredient concentration of 0.05 % v/v. Adjust the volume proportionally for larger or smaller spray tanks, maintaining the same ratio.
The preparation steps are:
- Fill the spray tank with the required amount of water, allowing space for the concentrate.
- Add the measured volume of Fitoverm concentrate while the water is agitating.
- Stir gently for 1–2 minutes to achieve a uniform emulsion.
- Conduct a visual check for complete dissolution; any residue indicates insufficient mixing.
- Perform a spot‑test on a single leaf before full application to verify phytotoxicity absence.
Application guidelines:
- Apply when cucumber leaves are dry and ambient temperature ranges between 15 °C and 30 °C.
- Spray until runoff begins, ensuring coverage of both leaf surfaces and undersides where mites reside.
- Target early morning or late afternoon to reduce photodegradation.
- Repeat treatments at 7‑day intervals; if mite pressure persists, shorten the interval to 5 days, not exceeding three consecutive applications.
Safety and handling:
- Wear protective gloves, goggles, and a face shield during mixing and spraying.
- Store the concentrate in a cool, ventilated area, away from direct sunlight.
- Clean equipment with water after each use to prevent residue buildup.
- Dispose of empty containers according to local hazardous waste regulations.
Resistance management:
- Alternate Fitoverm with a different mode‑of‑action acaricide after two applications.
- Incorporate cultural controls such as removing heavily infested leaves and maintaining adequate plant spacing.
Following these procedures ensures effective control of spider mites on cucumber crops while minimizing crop injury and environmental impact.