Question

Микроскопические мучные клещи могут в огромных количествах размножаться в зернохранилищах и приводить зерно в полную негодность. При оптимальной температуре +20—22 °С развитие яйца длится 3—4 дня, при +10 °С — растягивается до полугора месяцев Температур выше +45—50 °С клещи не переносят Они погибают при влажности зерна 10—12% из-за сухости и выше 70% — из-за развития плесневых грибков Предложите способ, как избавиться от клещей и сохранить зерно, не прибегая к ядохимикатам

Answer 1

Вообще вариантов много, ну или мне так кажется. Ну вот моё мнение: можно хранить зерно в больших резервуарах с водой, либо в холодильниках)

Answer 2

Controlling Flour Mites and Preserving Grain Without Chemicals

Microscopic flour mites can indeed proliferate in grain storage facilities and render the grain completely unusable. Their development time varies with temperature, with eggs taking 3-4 days to hatch at 20-22°C and stretching to around half a year at 10°C. Flour mites cannot survive temperatures above 45-50°C and perish at grain moisture levels below 10% due to dryness or above 70% due to the growth of mold fungi.

Given these challenges, it's important to explore non-chemical methods to control flour mites and preserve grain.

Natural Methods for Controlling Flour Mites

1. Temperature Control: Maintaining the temperature within the grain storage facility can be a crucial factor in controlling flour mites. Exposing the grain to temperatures above 50°C for a sustained period can effectively eliminate the mites. This can be achieved through methods such as heat treatment or solarization.

2. Moisture Control: Controlling the moisture content of the grain is essential. Reducing the moisture level below 10% can prevent the survival of flour mites. This can be achieved through proper ventilation and dehumidification techniques.

3. Freezing: Subjecting the grain to extremely low temperatures can also be effective in eradicating flour mites. Freezing the grain for a period of time can help eliminate the mites and their eggs.

4. Cleanliness and Hygiene: Maintaining clean and hygienic storage conditions can help prevent the proliferation of flour mites. Regular cleaning and inspection of the storage facility can aid in early detection and control of infestations.

By implementing these natural methods, it's possible to effectively control flour mites and preserve grain without resorting to chemical interventions.