Plant-derived attractant for Harmonia axyridis (Pallas) and application thereof

摘要

Disclosed is a plant-derived attractant for Harmonia axyridis (Pallas) and an application thereof. The plant-derived attractant has an active ingredient comprising p-myrcene, a-cubene, methyl salicylic acid, and a-cypressene. The attractant is a plant-derived attractant, and its components and ratios mimic host plants in nature. The attractant has an attracting effect on Harmonia axyridis (Pallas). Further disclosed is an application of the attractant for Harmonia axyridis (Pallas) in the field of pest control. The attractant can be added dropwise to lures to form releasers. The releasers evenly scattered in the field can effectively improve the attraction rate of Harmonia axyridis (Pallas) and improve the predation rate of Harmonia axyridis (Pallas) against pets. The preparation method of the attractant is simple and suitable for large-scale application. The invention can reduce the use of pesticides, effectively reduce the ecological environment pollution and pesticide residues in crops, and has significant ecological and social benefits.