摘要:
Provided is an attractant of white peach scale capable of simplifying the synthesis of a sex pheromone of white peach scale and suppressing attraction of a parasitoid wasp which is a natural enemy of the white peach scale. More specifically, provided is a sex attractant of white peach scale comprising at least (R,Z)-(+)-3,9-dimethyl-6-isopropenyl-3,9-decadienyl priopionate and a geometric isomer (R,E)-(+)-3,9-dimethyl-6-isopropenyl-3,9-decadienyl priopionate at a weight ratio ranging from 80:20 to 40:60. In addition, provided is a method for attracting white peach scale by using said attractant.
摘要:
A mating disruption method for the control of insect pests comprises releasing a sex pheromone in a field wherein an adsorption of the sex pheromone to a soil in the field is decreased.
摘要:
When a communication disruptant containing (Z)-11-tetradecen-1-yl acetate as the only active ingredient is continually used for a period of 5 to 10 years, a phenomenon has been observed in which its communication-disrupting effect on insect pests, particularly of the family Tortricidae, living in the field or the like through successive generations is reduced. Accordingly, it is eagerly desired to develop a new communication disruptant which is also effective for such fields where the communication-disrupting effect (on insect pests, particularly of the family Tortricidae, living there through successive generations) has been reduced. The present invention provides, for use in the control of insect pests having (Z)-11-tetradecen-1-yl acetate contained in their sex pheromone, a communication disruptant containing (Z)-11-tetradecen-1-yl acetate and the maximum component in the composition of the sex pheromone excepting (Z)-11-tetradecen-1-yl acetate, wherein the weight percentage of the maximum component in the communication disruptant is equal to a value obtained by multiplying the weight percentage of the maximum component in the sex pheromone by a number in the range of 2/100 to 50/100.
摘要:
Targeting an insect pest having a carboxylic acid compound as a pheromone substance, provided is a sustained release pheromone preparation enabling a high amount of pheromone to be released during the control period. More specifically, provided is a sustained release pheromone preparation, comprising: a carboxylic acid compound to be released, and an ethylene-vinyl acetate copolymer membrane through which the carboxylic acid compound can permeate, wherein the preparation is targeted for an insect pest having the carboxylic acid compound as a pheromone substance.
摘要:
Targeting an insect pest having a carboxylic acid compound as a pheromone substance, provided is a sustained release pheromone preparation enabling a high amount of pheromone to be released during the control period. More specifically, provided is a sustained release pheromone preparation, comprising: a carboxylic acid compound to be released, and an ethylene-vinyl acetate copolymer membrane through which the carboxylic acid compound can permeate, wherein the preparation is targeted for an insect pest having the carboxylic acid compound as a pheromone substance.
摘要:
Provided is a method for preparing (E3,Z5)-3,5-alkadienyl acetate and (E3,Z5)-3,5-dodecadienyl acetate which is a sex pheromone of Brazilian apple leafminer. Specifically, provided is a method for preparing (E3,Z5)-3,5-alkadienyl acetate, comprising steps of hydrolyzing 5,5-diethoxy-(Z3)-3-pentenyl methoxymethyl ether in the presence of an acid to obtain 4-formyl-(E3)-butenyl methoxymethyl ether; reacting the 4-formyl-(E3)-butenyl methoxymethyl ether with alkylidene triphenylphosphorane in accordance with the Wittig reaction to obtain (E3,Z5)-3,5-alkadienyl methoxymethyl ether; and obtaining (E3,Z5)-3,5-alkadienyl acetate using the (E3,Z5)-3,5-alkadienyl methoxymethyl ether as a starting substance.
摘要:
Provided are a behavior-disrupting agent of Argentine ants for controlling them or suppressing their reproduction is a safer and more effective manner, and the behavior-disrupting method of them. More specifically, a behavior-disrupting agent of Argentine ants comprising Z-9-hexadecenal, and a behavior-disrupting method of Argentine ants comprising a step of using the behavior-disrupting agent are provided based on the finding that the behavior of Argentine ants is disrupted by emission of Z-9-hexadecenal, which is a trail pheromone, into the atmosphere.
摘要:
Disclosed are compounds suitable for use as raw materials which enable cis-olefin compounds useful as physiologically active substances such as the sex pheromones of various insects, or as intermediates for the synthesis thereof to be prepared on an industrial scale at a reasonable cost, and processes for the preparation of cis-olefin compounds by using the same. For this purpose, novel compounds (i.e., 1-halo-cis-3-tetradecenes) of the general formula (I)CH.sub.3 (CH.sub.2).sub.9 CH.dbd.CH(CH.sub.2).sub.2 X (I)wherein X is a halogen atom, are used as raw materials for the preparation of cis-olefin compounds.
摘要:
Provided are a sustained releaser of sex pheromone substances and a method for controlling insect pest by using the releaser, each enabling to control the simultaneous release of a mixture of sex pheromone substances having different chemical structures of one insect pest or a mixture of sex pheromone substances of insect pests, and each enabling to release the sex pheromone substances at a fixed rate or greater during the infestation period or periods of the respective insect pest or pests. More specifically, provided is a sustained releaser of sex pheromone substances comprising one or more first sex pheromone substances selected from linear aliphatic aldehyde having 10 to 18 carbon atoms, one or more second sex pheromone substances selected from aldehyde-free aliphatic derivatives having 7 to 20 carbon atoms, and first and second chambers each made of polymer material, wherein all of the first sex pheromone substances or all of the first sex pheromone substances and some of the second sex pheromone substances are enclosed in the first chamber and the remainder of the sex pheromone substances is enclosed in the second chamber.
摘要:
Provided are a sustained release dispenser which can control the release of sex pheromone simultaneously toward two or more species of insect pests and can also release the sex pheromone in response to the generation period of insect pest and the pest control method toward two or more insect pests. Provided specifically is a sex pheromone sustained release dispenser comprising two or more sex pheromone substances, each substance being aliphatic derivative having 10 to 20 carbons, and first and second chambers wherein some or all of the sex pheromone substance having a smallest carbon number excluding a carbon number in a functional group is contained in a first polymer chamber and the remainder is contained in a second polymer chamber. Provided also is a pest control method for using the sex pheromone sustained release dispenser.