Analysis of Plant Protection Effect of Beneficial Nematodes

Nematodes are non-segmented, elongated roundworms that are colorless, without appendages, and usually microscopic. There are non-beneficial and beneficial (e.g., entomopathogenic) nematodes. Non-beneficial nematodes cause damage to crops and other types of plants. Beneficial nematodes cause damage to soilborne insect pests yet are not harmful to humans, animals, plants, or earthworms and can therefore be used as biological control organisms. Beneficial nematodes are also referred to as 'entomopathogenic' (causing disease within an insect) or 'insecticidal' (ability to kill insects).

Lifeasible, as a leading global company, is committed to helping our customers achieve effective and successful research. We provide a mechanism analysis of plant response to nematodes. In addition, we deliver reliable results and reports on time to our customers worldwide.

Culture of Beneficial Nematodes

• The life cycle of most nematodes includes an egg stage, four juvenile stages, and an adult stage. The third juvenile stage of beneficial nematodes is referred to as the 'infective juvenile' or 'dauer' stage and is the only free-living stage. The infective juvenile can survive in the soil; its function is to locate, attack, and infect an insect host.
• According to the life cycle of beneficial nematodes, Lifeasible provides a culture of beneficial nematodes by various methods, including in vivo / in vitro cultivation, isolated cultivation, aseptic cultivation, and monoculture method.

Ecological Analysis of Beneficial Nematodes

Fig.1 Diagram showing that the beneficial nematodes can infect and kill various stages of their host insects.

Currently, beneficial nematodes are increasingly used in life and production, and their control effect is closely related to some ecological factors, so ecological research is also developed. We provide an analysis of ecological factors associated with beneficial nematodes, such as soil temperature, moisture, soil type, and natural enemies.

Mechanism Analysis of Pest Control by Beneficial Nematodes

• Only nematodes in the infective juvenile stage will survive in the soil and will find and penetrate insect pests. Infective juvenile beneficial nematodes locate their hosts in soil using two strategies, ambushing and cruising.
• Once the host is found, it enters the insect's body cavity through the natural openings in the host's epidermis (mouth, anus, and stomata), through wounds or the intersegmental membrane of the body wall. It starts releasing the symbiotic bacteria until the host's body is depleted of nutrients.
• We provide mechanism analysis of pest control by beneficial nematodes, including access to hosts, dispersal and host finding, the pathogenicity of nematodes and commensal bacteria, etc.

Analysis of Integrated Control by Beneficial Nematodes

We provide analysis of integrated control with beneficial nematodes, including a single use of beneficial nematodes for control, the application of beneficial nematodes in combination with pesticides for pest control, application of beneficial nematode symbiotic bacteria for pest control.

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