Efficacy of agrochemicals against Phyllobius oblongus

Abstract

The contact, residual, and ingestion efficacy of two conventional insecticides was compared with that of another five environmentally friendly agrochemicals in a laboratory for the control of the European snout beetle. Very good efficacy was observed for the conventional product Reldan 22<sup>®</sup> after all types of exposures. The conventional Mospilan<sup>®</sup> 20 SP showed good efficacy after ingestion. SpinTor<sup>®</sup> was very effective 72 h after ingestion and contact, and Siltac<sup>®</sup> EC showed comparable efficacy with conventional insecticides 72 h after ingestion and residual contact. SpinTor<sup>®</sup> and Siltac<sup>®</sup> conform to the principles of organic farming and integrated pest management (IPM) and are able to replace both the tested conventional products in young fruit plantations and nurseries. Pyrethrum PNC – 17, FerrumOil, and Boundary SW did not sufficiently control the beetle.