Method, device and mixture for aerial application of Trichogramma strain parasitoids in plant protection and method of evaluating aerial application of the Trichogramma strain parasitoids

摘要

In carrying out the method of aerial application of parasitoids of the genus Trichogramma in plant protection, a defined amount of parasitoids of the genus Trichogramma are placed on a defined area of the stand or per unit area of the crop by means of a flying means. First, however, a free-flowing mixture of parasitoid chrysalis Trichogramma is formed in defined developmental phases and a bulk inert substrate of natural origin of the desired concentration, whereupon the particulate composition is gradually discharged from the flying agent at a defined rate and at a defined height above the treated agent in a defined amount of time. growth. In carrying out the method of evaluation of the previously elucidated method of application of parasitodia of the genus Trichogramma in plant protection, a set of catching pads of loose mixture is placed before the application of the loose mixture of parasitoid Trichogramma pupae found in defined developmental phases and a loose inert substrate of natural origin to the defined area of the treated stand. application of parasitoids of the genus Trichogramma by means of a flying device and subsequently the number of parasitoids of the genus Trichogramma captured on the individual capture areas is visually evaluated. The device for carrying out the previously explained method of aerial application of parasitoids of the genus Trichogramma in plant protection comprises a reservoir of parasitoids of the genus Trichogramma and a dispenser. The reservoir of parasitoids of the genus Trichogramma consists of a gravitational reservoir (2) of a bulk mixture of parasitoid pupae Trichogramma found in defined developmental phases and a loose inert substrate of natural origin, at the outlet of which a dispensing mechanism is arranged (3).