dazometi

Dazomet is a soil fumigant and biocide. It is a white crystalline solid with a faint odor. Its chemical formula is C5H10N2S2. Dazomet is primarily used in agriculture to control a wide range of soil-borne pests, including nematodes, fungi, insects, and weeds. It is applied to soil, where it decomposes and releases methyl isothiocyanate (MITC), the active biocidal component. MITC is a volatile compound that diffuses through the soil, killing target organisms.

The application of dazomet requires careful consideration of environmental conditions such as soil moisture and temperature, as these factors influence its decomposition rate and efficacy. After application, the soil typically needs to be covered or sealed to prevent the premature escape of MITC and to ensure adequate exposure time for pest control. Following a waiting period, known as a re-entry interval, the soil is aerated to dissipate any remaining MITC before planting.

Dazomet is toxic and can cause irritation to skin, eyes, and the respiratory tract. Proper personal protective equipment is essential during handling and application. Its use is regulated in many countries due to its potential environmental impact, particularly its toxicity to aquatic organisms. Alternatives to dazomet are being explored and utilized to reduce reliance on chemical fumigants.