Abstract: The present invention provides an RNA comprising in the 5? to 3? direction a first sequence and a second sequence, the first sequence being spaced apart from the second sequence by a spacer sequence, the first and second sequences being substantially complementary and forming a duplex via Watson and Crick base pairing, the second sequence being able to hybridise with the mRNA of a target gene in an organism, the RNA being substantially in the form of a hairpin, the second sequence being fully complementary to the said mRNA along the region at which it hybridises, the first sequence comprising nucleotide bases which do not Watson and Crick base pair with the corresponding bases in the second sequence of the duplex wherein the duplex does not comprise regions of 3 or more consecutive mismatched bases or an RNA comprising in the 5? to 3? direction a first sequence and a second sequence, the first sequence being spaced apart from the second sequence by a spacer sequence, the first and second sequences being subst

Abstract: The present invention provides a method of substantially retaining or otherwise preserving the biological activity of a dsRNA, present in a cell lysate, to post-transcriptionally silence the expression of a gene in a target organism, comprising the step of adding to the lysate a compound having the function of a protein- or amine-cross linking agent. The invention also comprises compositions comprising the lysate comprising dsRNA, and protein cross linking agents, as well as the use of said agents in the method.

Abstract: The present invention relates to control of pest infestation by inhibiting one or more biological functions. The invention provides methods and compositions for such control, By feeding one or more recombinant double stranded RNA molecules provided by the invention to the pest, a reduction in pest infestation is obtained through suppression of gene expression. The invention is also directed to methods for making transgenic plants that express the double stranded RNA molecules, and to particular combinations of transgenic pesticidal agents for use in protecting plants from pest infestation.

Abstract: The present invention relates to control of pest infestation by inhibiting one or more biological functions. The invention provides methods and compositions for such control, By feeding one or more recombinant double stranded RNA molecules provided by the invention to the pest, a reduction in pest infestation is obtained through suppression of gene expression. The invention is also directed to methods for making transgenic plants that express the double stranded RNA molecules, and to particular combinations of transgenic pesticidal agents for use in protecting plants from pest infestation.

Abstract: The present invention relates to control of pest infestation by inhibiting one or more biological functions. The invention provides methods and compositions for such control, By feeding one or more recombinant double stranded RNA molecules provided by the invention to the pest, a reduction in pest infestation is obtained through suppression of gene expression. The invention is also directed to methods for making transgenic plants that express the double stranded RNA molecules, and to particular combinations of transgenic pesticidal agents for use in protecting plants from pest infestation.

Abstract: The present invention provides an agent that modulates physiological condition of pests, wherein the agent has an ability to modulate the activity of an insect voltage-gated potassium channel; a method for assaying pesticidal activity of a test substance, which comprises measuring the activity of a voltage-gated potassium channel in a reaction system in which the voltage-gated potassium channel contacts with a test substance, and so on.

Abstract: The present invention provides an agent that modulates physiological condition of pests, wherein the agent has an ability to modulate the activity of an insect vesicle-fusing ATPase; a method for assaying pesticidal activity of a test substance, which comprises measuring the activity of a vesicle-fusing ATPase in a reaction system in which the vesicle-fusing ATPase contacts with a test substance, and the like.

Abstract: The present invention relates to control of pest infestation by inhibiting one or more biological functions. The invention provides methods and compositions for such control. By feeding one or more recombinant double stranded RNA molecules provided by the invention to the pest, a reduction in pest infestation is obtained through suppression of gene expression. The invention is also directed to methods for making transgenic plants that express the double stranded RNA molecules, and to particular combinations of transgenic pesticidal agents for use in protecting plants from pest infestation.

Abstract: The present invention provides an agent that modulates physiological condition of pests, wherein the agent has an ability to modulate the activity of an insect c-Jun NH2-terminal kinase; a method for assaying pesticidal activity of a test substance, which comprises a step of measuring the activity of a c-Jun NH2-terminal kinase in a reaction system in which the c-Jun NH2-terminal kinase contacts with a test substance, and the like.

Abstract: The present invention relates to control of pest infestation by inhibiting one or more biological functions. The invention provides methods and compositions for such control. By feeding one or more recombinant double stranded RNA molecules provided by the invention to the pest, a reduction in pest infestation is obtained through suppression of gene expression. The invention is also directed to methods for making transgenic plants that express the double stranded RNA molecules, and to particular combinations of transgenic pesticidal agents for use in protecting plants from pest infestation.