Mixtures of sabadilla alkaloids and pyrethroids and uses thereof

Abstract

The present invention is directed to pesticidal mixtures comprising sabadilla alkaloids and a pyrethroid and methods of controlling pests including insects and mites by application of pesticidal mixtures comprising sabadilla alkaloids and a pyrethroid.

What is claimed is: 
     
         1 . A pesticidal mixture comprising an effective amount of sabadilla alkaloids and a pyrethroid. 
     
     
         2 . The mixture of  claim 1 , wherein the sabadilla alkaloids are derived from  Schoenocaulon officinale.    
     
     
         3 . The mixture of  claim 1 , wherein the sabadilla alkaloids are veratridine and cevadine. 
     
     
         4 . The mixture of  claim 1 , wherein the pyrethroid is selected from the group consisting of allethrin, bifenthrin, cyfluthrin, cypermethrin, cyphenothrin, deltamethrin, esfenvalerate, etofenprox, fenpropathrin, fenvalerate, flucythrinate, flumethrin, imiprothrin, lambda-cyhalothrin, metofluthrin, permethrin, prallethrin, resmethrin, silafluofen, sumithrin, tau-fluvalinate, tefluthrin, tetramethrin, tralomethrin, and transfluthrin. 
     
     
         5 . The mixture of  claim 1 , wherein the pyrethroid is esfenvalerate or permethrin. 
     
     
         6 . The mixture of  claim 1 , wherein the sabadilla alkaloids are at a concentration from about 0.05% to about 0.5% w/w, wherein w/w denotes weight by total weight of the mixture. 
     
     
         7 . The mixture of  claim 1 , wherein the pyrethroid is at a concentration from about 0.0005% to about 0.5% w/w, wherein w/w denotes weight by total weight of the mixture. 
     
     
         8 . The mixture of  claim 1 , wherein the ratio of sabadilla alkaloids to the pyrethroid is from about 1:15 to about 100:1. 
     
     
         9 . The mixture of  claim 1  further comprising one or more excipients selected from the group consisting of solvents, anti-caking agents, stabilizers, defoamers, slip agents, humectants, dispersants, wetting agents, thickening agents, emulsifiers, penetrants, adjuvants, synergists, polymers, propellants and/or preservatives. 
     
     
         10 . A method of controlling a pest comprising applying a pesticidal mixture comprising an effective amount of sabadilla alkaloids and a pyrethroid to the pest or the pest's environment. 
     
     
         11 . The method of  claim 10 , wherein the pest at least one of an insect and a mite. 
     
     
         12 . The method of  claim 10 , wherein the pest is selected from the group consisting of aphids (Homoptera), whiteflies (Hemiptera), thrips (Thysanoptera), bed bugs (Hemiptera), fleas (Siphonaptera), caterpillars/worms (Lepidoptera), beetles (Coleoptera), cockroaches (Blattodea), flies (Diptera), ants (Hymenoptera), mosquitoes (Culicidae) and mites (Acari). 
     
     
         13 . The method of  claim 10 , wherein the pest is selected from the group consisting of common bed bugs ( Cimex lectularius ), green peach aphids ( Myzus persicae ), house fly ( Musca domestica ), yellow fever mosquito ( Aedes aegypti ), southern house mosquito ( Culex quinquefasciatus ), African malaria mosquito ( Anopheles gambiae ), common malaria mosquito ( Anopheles quadrimaculatus ) and German cockroach ( Blattella germanica ). 
     
     
         14 . The method of  claim 10 , wherein the sabadilla alkaloids are applied to the pest or the pest's environment at a rate from about 1 to about 1,000 grams per hectare. 
     
     
         15 . The method of  claim 10 , wherein the sabadilla alkaloids are applied to the pest or the pest's environment at a rate from about 10 to about 700 grams per hectare. 
     
     
         16 . The method of  claim 10 , wherein the sabadilla alkaloids are applied to the pest or the pest's environment at a rate from about 22 to about 560 grams per hectare. 
     
     
         17 . The method of  claim 10 , wherein the pyrethroid is applied to the pest or the pest's environment at a rate from about 1 to about 500 grams per hectare. 
     
     
         18 . The method of  claim 10 , wherein the pyrethroid is applied to the pest or the pest's environment at a rate from about 17 to about 336 grams per hectare. 
     
     
         19 . The method of  claim 10 , wherein the pyrethroid is applied to the pest or the pest's environment at a rate from about 15 to about 112 grams per hectare. 
     
     
         20 . The method of  claim 10 , wherein the pyrethroid is applied to the pest or the pest's environment at a rate from about 112 to about 336 grams per hectare.