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(11)    Patent No :    AP 2176    (73) Applicant(s)       
(21)    Application No :    AP/P/2006/003722    SYNGENTA PARTICIPATIONS AG, Schwarzwaldallee 215,       
            CH-4058 Basel,       
                   
(22)    Filing Date :    15.03.2005    Switzerland       
(24)    Date of Grant &    24.11.2010           
                   
(45)    Publication :

(30)    Priority Data            (72) Inventors   
    (33) Country    (31) Number    (32) Date    BAUM Stefan, Switzerland   
    US    60/553,494    16.03.2004           
    EP    04013030.4    02.06.2004    (74) Representative   
(84)    Designated State           
    KE   ZW            HONEY & BLANCKENBERG   
                   
(51)    International    Classification    A01C1/06 (2006.01)    A01N25/30 (2006.01)   
            A01N43/90 (2006.01)       

(54)    Title

Seed treatment pesticidal compositions

(57)    Abstract

A seed treatment aqueous insecticidal arid/or nematicidal composition in the form of a suspension comprising: (A) at least one insecticide and/or nematicide in an amount of at least 3 weight %, based on the weight of the composition, and optionally at least one other substance which has a melting point above 30°C; and (B) at least two surface active compounds, wherein (i) at least one surface active compound has a molecular weight of less than 2200 and a Hydrophile -Lipophilic Balance (HLB) of at least 10 and (ii) at least one surface active compound is non-ionic, has a molecular weight of at least 2200, wherein 10 to 60 % of the compound molecular weight contributes to the hydrophile constituent of the compound, and the molecular weight of the hydrophobe constituent of the compound is from 2000 to 10000; provided that the weight ratio of (B):(A) is in the range 0.08 to 0.5, and the weight ratio of (ii):(i) is at least 0.5. Such compositions demonstrate improved

dust -off performance when applied t o propagation material, such as seeds.

(56)    Documents Cited :    WO 99/29169 A   WO 00/35284 A

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