Soybean moth Leguminivora glycinivorella (Lepidoptera: Tortricidae): harmfulness in the conditions of the south of the Amur region

Abstract

The research paper presents data on the particularities of the spreading Leguminivora glycinivorella within the field, the degree of damage to various soybean varieties of Russian selection by this pest, as well as calculations of the economic threshold of harmfulness based on current data. Pest infestation of crops occurs from the near edge part; maximum density is achieved in a zone of 10-20 m from the edge of the field. The most susceptible to pest infestation are pods of varieties with a growing season of up to 102 days, and varieties with a growing season of more than 122 days are the least vulnerable. L. glycinivorella reaches the economic threshold of harmfulness at 10.5-13.4% of infected pods, provided that a seed soybean yield is obtained, as well as when obtaining vegetable soybean that is used for food in pods. The use of insecticides in the cultivation of soybean, intended for processing, is inadvisable at any level of reproduction of the pest.

Effect of hydrophobically modified PEO polymers (PEO-dodecyl) on oil/water microemulsion properties: in vitro and in silico investigations

“…[1][2][3][4] Like liposomes, microemulsions have also hydrophobic and hydrophilic compartmentalized micro-domains, in which hydrophilic and lipophilic drug molecules could be encapsulated and stabilized. [5][6][7] In addition, microemulsions are the subject of many potential applications in detergents, 8 lubrication, 9 phytosanitary, 10 cosmetics, 11 formulation of paints, 12 and advanced petrol extraction. 13 This growing interest in microemulsions also results from a better understanding of their physicochemical properties.…”

Ecological aspect of the larval parasitoid Diadegma hiraii (Hymenoptera: Ichneumonidae) as a potential biological control agent of soybean pod borer Leguminivora glycinivorella (Lepidoptera: Tortricidae)

“…The soybean pod borer, Leguminivora glycinivorella (Matsumura), is an important pest on soybeans in Asia, including Japan, China, and Russian Far East (Kuwayama 1928, Shi et al 2018, Kuzmin et al 2020). Adult emergence occurs once a year, and the pod borer is univoltine, synchronized with the development of soybean pods and seeds (Ishitani 1993), laying eggs on the soybean pod.…”