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    Home > Biochemistry News > Biotechnology News > Liu Yusheng has developed new embedded biological control technologies.

    Liu Yusheng has developed new embedded biological control technologies.

    • Last Update: 2020-08-10
    • Source: Internet
    • Author: User
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    Over the years, pesticides have become the dependence of agricultural development, but excessive use of pesticides has caused serious damage to agricultural ecosystems, biodiversity has been reduced year by year, pollinating insects have also suffered from "the worst disaster", agricultural development into a new predicament.
    in this context, the new form of human civilization development has become the pursuit of human-natural-social harmony of ecological civilization, and agricultural green has developed into a new direction. Plant protection under the guidance of the concept of
    ecological civilization has been rapidly shifted from pesticide plant protection in the background of industrial civilization to ecological plant protection. Liu Yusheng, vice president of the Institute of New Rural Development at Shandong Agricultural University in
    , has been exploring the field of insects for many years and has developed new embedded biological control technologies, which provide a green hope for ecological plant protection.
    ecological plant protection came into being in the field of modern agricultural production, and it is an important research field to explore the relationship between agricultural ecological civilization and agricultural production mode, and the relationship between crops, pests and diseases and prevention and control techniques is the core content. the emergence of
    pesticides to ensure that crops are not affected by pests and diseases, to ensure food demand, but also brought a lot of ecological problems.
    ecological plant protection came into being.
    pesticide plant protection to ecological plant protection is a realistic need, in line with the concept of ecological development.
    " the theoretical system of ecological plant protection includes: ecosystem, food chain, ecological balance, biomass, general system theory and so on.
    ," Liu Yusheng told China Science Daily.
    After many years of development, the ecological plant protection technology system has been large, including: prediction and prediction technology, physical prevention and control technology, biomass resource utilization and pest source control technology; Liu Yusheng,
    , said that the essence of ecological plant protection is actually to regulate the relationship between biology and biology, biology and environment, is a systematic and comprehensive technical system.
    the embedded biological control new technology system constitutes a new member in the field of ecological plant protection, Liu Yusheng proposed the improvement and application of new embedded biological control technology or become an important measure to ensure the green development of agriculture.
    According to Liu Yusheng, the ideal goal of embedded biological control technology is to establish a self-sustaining and effective reduction of pest population level of the technical system.
    this technical system consists of two subsystems.
    subsystem I is the natural enemy insect breeding system, consisting of three links: carrier plant-bait insect-natural enemy insect, to complete the cultivation of natural enemy insects.
    carrier plant system, also known as open natural enemy breeding system, is a new biological control technology developed in recent years to protect the use of local natural enemy, artificial reproduction and release of natural enemies and other traditional technical features.
    and subsystem II is a crop protection system, consisting of two links, pest control and protection crop protection, to achieve the goal of crop protection.
    "embedded biological control new technology system in line with the principle of biodiversity, is also the most simple biodiversity application, that is, two subsystems of the five constituent species are indispensable, but adding any link will bring operational inconvenience, cost increase.
    ," Liu said.
    crop pests are divided into two parts, underground, the ground is mainly aphids, powder lice and red spiders;
    at present, Liu Yusheng has built a corresponding model for crop pests.
    for aphid pests, he built a purple vine-purple vine-heterogeneic ladybug-control-control-tick-protection crop model; for powder lice pests, he built a purple vine-purple-vine-turtle-print ladybug-control-control-powder-protection crop model; Pests, the construction of peanut seedlings - bait leaf worms - deep-eating slugs - control of leaf worms - protection crop patterns, forpests, the construction of organic waste - yellow powder worms - oriental ant lions / Taishan cave - planted slugs- protection crop patterns.
    ", in order to improve the new technology of embedded biological control and improve the effect of ecological control, we also need to further promote the combination of natural enemy insect application technology, such as the heterogeneous ladybug / bee combination of tobacco control, Taishan shochie / white bacteria combination prevention and controlpests.
    " Liu Yusheng said that the embedded biological control of new technology model into the agricultural green development system, to achieve the natural enemy insects and prevention and control objects between the effect, timely take artificial manipulation measures to achieve the whole process of agricultural production to curb the occurrence of pests sustainable results.
    Embedded biocontrol technology is an innovative green technology system experts believe that embedded bio-control technology is an innovative green technology system, which realizes the correspondence between biological control force and pest occurrence in space, time, quantity and mobile behavior.
    in the space correspondence, the occurrence and expansion of pests is not uniform, biological control products can actively converge to pests into an uneven state; The occurrence of biological harm, is a number from small to more development process, biological control products can play a dynamic role according to this process, in terms of mobility correspondence, pests as a living body, with the ability to avoid, biological control products can actively track until hunting.
    " in the new era of comprehensive implementation of the concept of ecological civilization and the promotion of green development of agriculture, the new technology of embedded biological control has ushered in a historical opportunity for development, not only to add new content to ecological plant protection, but also to make substantial contributions to the development of agricultural green.
    ," Liu said.
    .
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