Method, device and mixture for aerial application of Trichogramma parasitoids in plant protection, and evaluation method of aerial application of Trichogramma parasitoids

摘要

A method of the aerial application of parasitoids of the genus Trichogramma in plant protection, in which on a defined plant surface area or on a unit of the plant surface area a defined amount of Trichogramma parasitoids is distributed by a flying means. First of all, a loose mixture consisting of the pupae of the parasitoids Trichogramma, which are in defined developmental stages, and of loose inert substrate of natural origin is formed, whereupon the loose mixture is gradually released in a defined amount per unit of time from the aerial means flying at a defined speed and at a defined altitude over the plant surface treated.;An evaluation method of the aerial application of Trichogramma parasitoids in plant protection, in which on a defined area of vegetation or on a unit of the area of vegetation a defined amount of Trichogramma parasitoides is distributed by means of a flying means. Before the application of the loose mixture consisting of the pupae of the parasitoid Trichogramma, which are in different defined developmental stages, and of a loose inert substrate of natural origin, a set of small capturing pads (4) of the loose mixture is distributed on a defined area of the plant surface treated, whereupon the application of Trichogramma parasitoids is performed with the aid of the flying means and subsequently the number of the pupae of Trichogramma parasitoids caught on individual capturing pads (4) is optically evaluated.;A device for the aerial application of Trichogramma parasitoids in plant protection, which comprises a reservoir of Trichogramma parasitoids and a dispenser. The reservoir of Trichogramma parasitoids is composed of a gravity reservoir of the loose mixture of the pupae of the parasitoid Trichogramma, which are in defined developmental stages, and of a loose inert substrate of natural origin. Arranged at the outlet of the gravity reservoir of the loose mixture is a dispensing mechanism (3) of the loose mixture, whereby the device (1) is provided with means for fastening to the flying means.;A loose mixture for the aerial application of Trichogramma parasitoids in plant protection. The loose mixture consists of the pupae of the Trichogramma parasitoid, which are in defined developmental stages, and of a loose inert substrate of natural origin.