a powerful phytophthora infestans - · pdf filea powerful fungicide against phytophthora...
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A POWERFUL fungicide against Phytophthora infestansPreventative and curative ACTivity as an INtegrated control strategy
ACTs by redistribution IN the upper leaf surfaceTranslaminar ACTivity IN the leaves
Composition : Valifenalate 60 g/kg + Mancozeb 600 g/kg
Formulation : WG
Dose rate : 2 - 2.5 kg
Use : Potatoes
Number of applications : 3
Spray interval : 7 - 10 days
in potatoes
Belchim Crop Protection S.A.
Technologielaan 7 - 1840 LonderzeelBelgiumwww.belchim.com ®Valis M is a registered trademark by Belchim Crop Protection N.V.
Read the instructions on the label before use.
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Phytophthora infestans potato - low pressure trialPL 2010
Untreated Valis M 2,5 Reference 1 Reference 2
Trial results Valis M
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Phytophthora infestans potato - high pressure trialUK 2009
untreated Valis M 2,5 Reference 1 Reference 2 Reference 3
00 g/kg
in potatoes
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Radio-labelled images after a topical application of valifenalate (14C) to the base of the leafl et.
Valifenalate exhibits translocation in the xylematic system of the plant.
Valifenalate protects the newly formed leaves.
A droplet of
valifenalate
A droplet of
valifenalate
2 hours 24 hours 7 days
A new active ingredient in potatoes
In the mode of action list of FRAC (Fungicide Resistance Action Committee) valifenalate is classed in the group of CAA-fungicides (Carboxylic Acid Amides). See the FRAC website for further information : www.frac.info
Valifenalate is fungicide belonging to the chemical group of valinamide carbamates.
VALIFENALATE exhibits eff ects on the fungal cell wall synthesis
• on the spores (outside the plant) • on the mycelium (inside the plant)
Mode of action After application valifenalate is fi xed to the cuticular wax layer and penetrates into the leaf.
Valifenalate sticks into the cuticle wax forming a reserve of active substance
• Excellent rainfastness
• Gradually spreads inside the plant, reaching its optimum concentration and remaining active for up to 14 days
Fast penetration
Valifenalate ACTs INside the plant through its…
Translaminar eff ects
Application to the upper leaf surface protects the underside of the leaf through translaminar movement.
There is redistribution of valifenalate in the leaf by slow acropetal movement.
Diff usant eff ects
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OO
O
OO
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Cl
HN
NHH
Eff ect of valifenalate on spores
Eff ect of valifenalate on germ tubes
Untreated
Untreated
Antisporulant activity due to the inhibition of the reproductive structures, induced by the action on the cell wall.
Curative activity on the mycelia in active growth inside the plant tissues, destroying hyphal tips of the cell walls of the fungus.
Very active against spore germination, inhibiting the formation of the infection structures, such as germination tubes and substomatal vesicles, interfering with the cell wall synthesis.
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