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Common name: kresoxim-methyl (BSI, pa ISO)
CAS RN: [143390-89-0]
PHYSICAL CHEMISTRY
Mol. wt.: 313.4
M.f.: C18H19NO4
Form: White, mildly aromatic crystals.
M.p.: 98-100 °C
V.p.: 2.3 ?10-3 mPa (20 ºC)
KOW logP = 3.4 (pH 7, 25 ºC)
Henry: 3.6 ?10-4 Pa m3 mol-1
S.g./density: 1.258 kg/l (20 °C)
Solubility In water: 2 mg/l (20 ºC).
Stability: Hydrolysis DT50 34 d (pH 7), 7 h (pH 9);
relatively stable at pH 5.
pKa: None in range 2-12
APPLICATIONS
Mode of action: Fungicide with protective, curative,
eradicative and long residual disease control; acts by inhibiting
spore germination. Redistribution via the vapour phase contributes
to activity.
Uses: Control of scab in apples and pears (Venturia spp.);
powdery mildew on apples (Podosphaera leucotricha), vines (Uncinula
necator), cucurbits (Sphaerotheca fuliginea) and sugar beet
(Erysiphe betae); mildew (Erysiphe graminis), scald (Rhynchosporium
secalis), net blotch (Pyrenophora teres) and glume blotch (Septoria
nodorum) on cereals; mildew on vegetables (Leveillula taurica,
Erysiphe spp., Alternaria spp.).
Formulation types: SC; SE; WG
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