Feeding deterrence in agricultural pests such as hemiptera, lepidoptera and coleoptera

Abstract

Compounds are used as agents that deter feeding on crops by agricultural pests, such as hemiptera, lepidoptera and coleoptera, including, but not limited to, stink bugs, codling moth larvae and granary weevils. Feeding deterrence is obtained by contact of the insects with at least one of the compounds of the structure (I)whereinR is —OH, ═O, —OC(O)R4, —OR6 or —(OR6)2, wherein each R6 is independently an alkyl group containing from 1 to 4 carbon atoms and R4 is a branched or straight chain, saturated or unsaturated, hydrocarbyl group with zero to two double bonds and from 1 to 15 carbon atoms;X is O or CH2 with the proviso that when X is O, R can only be ═O;each Z is independently (CH) or (CH2);y is a numeral selected from 1 and 2;R1 is H or a branched or straight chain, saturated or unsaturated hydrocarbyl group with zero to two double bonds and from 1 to 15 carbon atoms;R2 is H or a branched or straight chain, saturated or unsaturated hydrocarbyl group with zero to three double bonds and from 1 to 15 carbon atoms;R3 is selected from H, a branched or straight chain, saturated or unsaturated hydrocarbyl group with zero to three double bonds and from 1 to 15 carbon atoms, —(CH2)nOH, —C(O)OR5, —CH2C(O)OR7, —CH2C(O)R8, —C(O)NR9R10, and —CH2C(O)NR11R12 where each of R5, R7, R8, R9, R10, R11 and R12 is independently selected from H and a branched or straight chain, saturated or unsaturated hydrocarbyl group with zero to three double bonds and from 1 to 15 carbon atoms and n is an integer of from 1 to 12;the bond between the 2 and 3 positions in the ring structure may be a single or a double bond; and wherein the compounds of structure (I) contain from 9 to 20 total carbon atoms in the compounds.

Description

CROSS-REFERENCED APPLICATIONS[0001]This application is a continuation of U.S. patent application Ser. No. 14 / 390,826, filed Oct. 6, 2014, which claims priority to international application PCT / US13 / 00120, filed Apr. 30, 2013, and U.S. Application Ser. No. 61 / 687,920, filed May 2, 2012, all of which are incorporated herein by reference.BACKGROUND1. Field of the Disclosure[0002]This disclosure relates to the use of compounds as agents that deter feeding on crops by agricultural pests such as hemiptera, lepidoptera and coleoptera including, but not limited to, stink bugs, codling moth larvae and granary weevils.[0003]The active feeding deterrence agents of this disclosure are an effective control agent against agricultural pests such as hemiptera, lepidoptera and coleoptera. Hemiptera includes cicadas, aphids and stink bugs such as the Brown Marmorated Stink Bug. Lepidoptera includes butterflies and moths such as the Codling Moth. Coleoptera are beetles and the order contains granary w...

AI Technical Summary

Benefits of technology

These compounds effectively deter feeding by pests like stink bugs, codling moth larvae, and granary weevils, reducing crop damage while being safer for humans and the environment, with formulations including direct sprays, microencapsulated, and soil treatments.

Problems solved by technology

The cost of this damage is extensive and leads to hardship among growers.

If left uncontrolled, larvae can cause substantial damage, often infesting 20 to 90% of the fruit, depending on the variety and location.

Late maturing varieties are more likely to suffer severe damage than early varieties.

Nuts damaged early in the season when the nuts are quite small will drop off trees soon after damage occurs.

Nuts damaged later in the season will remain on trees, but their kernels are inedible.

This material is on the US Emergency Planning list of extremely hazardous substances and is highly toxic to bees.

Control of weevils is quite difficult as they live and breed in our food sources.

Images