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US 12,604,896 B2Granted
Mixture of levonogestrel and ethinylestradiol as control for bark insects
OwnerAlfredo Alejandro Noriega Vaca, Manuel José Grañén Porrúainventors
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Abstract
Bark beetles of the genus Dendroctonus are the main cause of deterioration of pine forests in Mexico, causing a negative ecological, economic, and social impact. The repellent effect of the mixture of levonorgestrel and ethinylestradiol on Dendroctonus frontalis and D. mexicanus in pine trees was determined in this study.
Claims4
A mixture comprising levonorgestrel and ethinylestradiol in a dose of 0.45 mg levonorgestrel and 0.09 mg ethinylestradiol for pest control.
A method for repelling infestations of bark beetles of genus Dendroctonus, comprising the following steps:
- a) identifying and selecting an area to be treated;
- and
- b) inoculating healthy trees with a mixture comprising 0.45 mg of levonorgestrel and 0.09 mg of ethinylestradiol per tree.
Dependencies are inferred from the claim text.