Stabilized insect nematode compositions

Abstract

An insecticidal composition comprising a first composition having an effective amount of at least one species of entomopathogen distributed in a matrix. A second composition selected from vegetable oil, crop oil and partially hydrogenated oil containing mono- and di-glycerides surrounds the first composition and significantly prolongs nematode viability. The matrix is a nematode-containing macrogel or paste of partially hydrogenated oils containing mono- and di-glycerides. The macrogel matrix is selected from a continuous polymer macrogel or microcapsule-containing macrogel. Partially hydrogenated oils containing mono- and di-glycerides, (e.g., Crisco.RTM. shortening), can also be mixed with free nematodes to produce a paste formulation. Trapping nematodes in a Crisco.RTM. matrix formulation along with a water retentive polymer results in increased protection against desiccation and significantly prolongs viability during storage. An insect feeding stimulant, such as raffinose, may also be added to the mix.

Dependencies are inferred from the claim text.