1,3-dichloropropene (*Telone II®, *Telone C-17®)
Products including the active ingredient 1,3-dichloropropene are effective soil fumigants for the control of plant-parasitic nematodes and other soilborne pests. Telone products are very effective against nematodes; the primary difference is the addition of chloropicrin to Telone C-17 and Telone C-35, which increases its efficacy against soilborne fungi. These products can only be used as preplant soil fumigants, and tree death will result if the soil is not allowed to aerate sufficiently before planting. Rates vary with soil texture and efficacy is strongly affected by soil moisture and temperature. Therefore, careful attention must be given to label recommendations and site preparation.
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