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North Bend, OR, United States

Huckins J.R.,Amgen Inc. | Bercot E.A.,Amgen Inc. | Bercot E.A.,Suterra LLC | Thiel O.R.,Amgen Inc. | And 2 more authors.
Journal of the American Chemical Society | Year: 2013

A general Rh(III)-catalyzed synthesis of naphthyridinone derivatives is described. It relies on a double-activation and directing approach leveraging nicotinamide N-oxides as substrates. In general, high yields and selectivities can be achieved using low catalyst loadings and mild conditions (room temperature) in the couplings with alkynes, while alkenes require slightly more elevated temperatures. © 2013 American Chemical Society. Source

Higbee B.S.,Paramount Farming Company | Burks C.S.,U.S. Department of Agriculture | Larsen T.E.,Suterra LLC
Insects | Year: 2014

The lack of an effective pheromone lure has made it difficult to monitor and manage the navel orangeworm, Amyelois transitella (Lepidoptera: Pyralidae), in the economically important crops in which it is the primary insect pest. A series of experiments was conducted to demonstrate and characterize a practical synthetic pheromone lure for capturing navel orangeworm males. Traps baited with lures prepared with 1 or 2 mg of a three- or four-component formulation captured similar numbers of males. The fluctuation over time in the number of males captured in traps baited with the pheromone lure correlated significantly with males captured in female-baited traps. Traps baited with the pheromone lure usually did not capture as many males as traps baited with unmated females, and the ratio of males trapped with pheromone to males trapped with females varied between crops and with abundance. The pheromone lure described improves the ability of pest managers to detect and monitor navel orangeworm efficiently and may improve management and decrease insecticide treatments applied as a precaution against damage. Awareness of differences between male interaction with the pheromone lure and calling females, as shown in these data, will be important as further studies and experience determine how best to use this lure for pest management. © 2014 by the authors; licensee MDPI, Basel, Switzerland. Source

Suterra Llc | Date: 2013-06-04

An environmentally friendly apparatus to attract and kill insect pests is described. The apparatus includes two panels, which could be made from one folded sheet, coupled together to form a housing for a pad containing an insect attractant, e.g. a pheromone. The outer surface of the housing has a plurality of louvered vents for dispersion of the scent from the attractant to the environment thus attracting the insect pest. The apparatus is configured to be capable of being on a fruit tree.

Suterra LLC | Date: 2014-05-29

Insect pheromones and pheromone precursors, containing one or more Z-alkenyl groups, are prepared by treating an alkyne with a copper complex, reducing agent, and proton donor in an organic solvent. The pheromones and pheromone precursors are prepared with high stereoselectivity and substantially no over reduction.

One or more embodiments of the invention are directed to the synthetic methods for making lepidopteran pheromones including navel orangeworm pheromones. The synthetic methods involve novel, efficient, and environmentally benign steps and procedures.

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