thripicide

plural thripicides · alternative thripsicide

1. A substance that kills thrips.

   Oil sprays uncombined with lime sulfur appear to have little value as thripicides.

   1925, Bulletin, Sunkist Growers. Pest Control Dept, page 22

   3 more examples

   The importance of the thrip has led to my arranging with Prof. Quayle and the Walnut Growers Association Spray Company to conduct demonstrations in the use of certain dust sprays believed to be effective thripicides, and less expensive than lime-sulphur.

   1921, California Citrograph, page 180

   All recommendations known to the authors for the use of this material as a thripicide specify solutions of or near 1 to 1,000.

   1941 September, R[obert] H[ale] Nelson, C[arroll] C[layton] Cassil, “Method of Treatment”, in Adsorption of Mercuric Chloride from Solution by Gladiolus Corms (Circular; No. 610), Washington, D.C.: United States Department of Agriculture, section “Twelve-Hour Tests”, page 4

   This pest management strategy may be accomplished through: 1) applying thripicide(s) only when thresholds are reached;

   1982, Recent Advances in Knowledge of the Phytoseiidae: Proceedings of a Formal Conference of the Acarology Society of America Held at the Entomological Society of America Meeting, San Diego, December 1981, page 10, column 2