Residues of dibromochloropropane in root crops grown in fumigated soil

Abstract

Dibromochloropropane (DBCP) was found in radish and carrot crops after application to soil at a rate of 12.26 lb/acre. Residues were highest in carrots (1.5 ppm) and persisted for 16 weeks when applied at seeding. DBCP dissipated from carrot more rapidly than from soil. Foliage of both crops contained smaller amounts of DBCP than the root. Most (78%) of the DBCP in carrot root was contained in the pulp. Approximately two-thirds of the residue in carrot root was removed by boiling.

Residues of dibromochloropropane in fresh and preserved peaches

“…Peach tree short life • is less severe when soil fumigation is used before and after planting (Zehr et al, 1976), and DBCP was the only chemical which was labeled for fumigation after planting. The relative lack of reported information on DBCP residues in peach fruits as well as other crops where DBCP Department of Plant Pathology and Physiology, Clemson University, Clemson, South Carolina 29631. has been used (Newsome et al, 1977) led to the present study conducted to determine presence and persistence of DBCP in peach fruit.…”