Composition and method for preventing or treating pine wilting disease
First Claim
1. A method for preventing or treating pine wilting disease which comprises injecting into the trunk of a pine tree in need thereof a compound of the formula (I):
- ##STR13## wherein;
R1 is alkyl, cycloalkyl or alkenyl;
R2 is hydrogen, alkyl, alkanoyl or alkylsilyl;
R3 is hydrogen or optionally substituted hydroxyl;
R4 is hydrogen, hydroxyl or alkoxyimino;
the carbon-carbon bond X represents a single bond or double bond, provided that, when R4 is alkoxyimino, X represents a single bond, and when R1 is methyl or ethyl and R2, R3 and R4 are hydrogen, X represents a double bond;
or a salt thereof,in an amount which is nematocidally and insecticidally effective in controlling both the pine wilt nematode Bursaphelenchus xylophilus and the pine sawyer beetle Monochamus alternatus.
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Accused Products
Abstract
There is disclosed a composition for preventing wilting of pines which comprises as an active ingredient a compound of the formula (I): wherein
R1 is alkyl, cycloalkyl or alkenyl;
R2 is hydrogen, alkyl, alkanoyl or alkylsilyl;
R3 is hydrogen or optionally substituted hydroxyl;
R4 is hydrogen, hydroxyl or alkoxyimino;
the carbon-carbon bond X represents a single bond or double bond, provided that, when R4 is alkoxyimino, X represents a single bond, and when R1 is methyl or ethyl and R2, R3 and R4 are hydrogen, X represents a double bond; or a salt thereof, as well as a method of preventing the pine wilt using the same.
Even if pine trees are infected with pine wilt nematodes, the pine wilt nematodes can be killed before the pine wilt nematodes start action in the trunks of the pine trees.
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Citations
14 Claims
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1. A method for preventing or treating pine wilting disease which comprises injecting into the trunk of a pine tree in need thereof a compound of the formula (I):
- ##STR13## wherein;
R1 is alkyl, cycloalkyl or alkenyl;R2 is hydrogen, alkyl, alkanoyl or alkylsilyl; R3 is hydrogen or optionally substituted hydroxyl; R4 is hydrogen, hydroxyl or alkoxyimino; the carbon-carbon bond X represents a single bond or double bond, provided that, when R4 is alkoxyimino, X represents a single bond, and when R1 is methyl or ethyl and R2, R3 and R4 are hydrogen, X represents a double bond;
or a salt thereof,in an amount which is nematocidally and insecticidally effective in controlling both the pine wilt nematode Bursaphelenchus xylophilus and the pine sawyer beetle Monochamus alternatus. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
- ##STR13## wherein;
Specification