Methods for reducing nematode damage

Abstract

A method of reducing damage to plant propagation material and plant organs which grow at a later time by a representative of the class Nematoda, which method comprises (i) treating the propagation material with (A) a chelating agent, and optionally (B) a macrocyclic lactone compound or another pesticide, before the material is sown or planted, or (ii) applying (A) a chelating agent, and optionally (B) a macrocyclic lactone compound or another pesticide, to the locus of the material or the treated material defined in (i) before its planting, and/or at its planting and/or during its growth.

1 . A method of reducing damage to plant propagation material and plant organs which grow at a later time by a representative of the class Nematoda, which method comprises (i) treating the propagation material with (A) a chelating agent, (B) abamectin and (C) azoxystrobin, before the material is sown or planted, or (ii) applying (A) a chelating agent, (B) abamectin and (C) azoxystrobin, to the locus of the material or the treated material defined in (i) before its planting, and/or at its planting and/or during its growth. 
     
     
         2 . The method according to  claim 1  wherein the plant propagation material is selected from the crops vegetables, citrus, soybeans, cotton, corn, potato, sugar beets, sugar cane, and cereals. 
     
     
         3 . The method according to  claim 1  wherein the plant propagation material is a seed. 
     
     
         4 . The method according to  claim 1  wherein chelating agent is a compound having at least two carboxylic groups. 
     
     
         5 . The method according to  claim 1  wherein the chelating agent is selected from an aminopolycarboxylic acid, aliphatic carboxylic acid and hydroxycarboxylic acid. 
     
     
         6 . The method according to  claim 1  wherein the chelating agent is metallated. 
     
     
         7 . The method according to  claim 6  wherein the metallated chelating agent is an iron chelate. 
     
     
         8 . The method according to  claim 1  wherein one or more pesticides are present in combination with chelating agent in the treatment (i) or in the application (ii). 
     
     
         9 . The method according to  claim 8  wherein the pesticide is a nematicide. 
     
     
         10 . The method according to  claim 8  wherein the pesticide is abamectin, carbamate nematicides selected from aldicarb, carbofuran, carbosulfan, oxamyl, aldoxycarb, ethoprop benomyl, and alanycarb; organophosphorus nematicides selected from phenamiphos, fenamiphos, fensulfothion, terbufos, fosthiazate, phosphocarb, dichlofenthion, isamidofos, fosthietan, isazofos, ethoprophos, cadusafos, chlorpyrifos, heterophos, isamidofos, mecarphon, phorate, thionazin, triazophos, diamidafos, and phosphamidon; methyl bromide, methyl iodide, carbon disulfide, 1,3-dichloropropene, chloropicrin, cytokinins, dazomet, DCIP, ethylene dibromide, GY-81, metam, methyl isocyanate,  myrothecium verrucaria  composition, flupyrazofos, benchlothiaz, [2-cyanoimino-3-ethylimidazolidin-1-yl]phosphonothioic acid O-ethyl S-propyl ester, and  bacillus firmus.    
     
     
         11 . A method of improving the growth of a plant, which comprises (i) and (ii) as defined in  claim 1 . 
     
     
         12 . A method of improving the control of soil-inhabiting pests towards a plant by a pesticide, which comprises (i) treating the propagation material with (A) a chelating agent, (B) abamectin and (C) azoxystrobin, before the material is sown or planted, or (ii) applying (A) a chelating agent, (B) abamectin and (C) azoxystrobin, to the locus of the material or the treated material defined in (i) before its planting, and/or at its planting and/or during its growth. 
     
     
         13 . (canceled) 
     
     
         14 . (canceled) 
     
     
         15 . (canceled) 
     
     
         16 . A method of protecting a plant propagation material and plant organs which grow at a later time by from attack by a representative of the class Nematoda, which method comprises (i) treating the propagation material with (A) a chelating agent, (B) abamectin and (C) azoxystrobin, before the material is sown or planted, or (ii) applying (A) a chelating agent, (B) abamectin and (C) azoxystrobin, to the locus of the material or the treated material defined in (i) before its planting, and/or at its planting and/or during its growth. 
     
     
         17 . (canceled)