Effect
Increased other
CunebForte treated Potato, cv. Yungay, grown and infected in a greenhouse with late blight had a 66 % lower infection efficiency (number of plants infected relative to number of plants inoculated) and 91.7 % less infected leaf area compared to the untreated control. The field experiment revealed that 2.5 g/L of K-phosphite is needed to give a level of control equivalent to commonly used convention contact fungicides and rates above this amount tend to give a better control.
Trial details
indoor, screenhouse, 20 cm pots filled with soil substrate, conditions conducive to late blight (mist) + outdoor, unprotected, soil grown, natural infection of late blight
Peru
Crop
Potato, Solanum tuberosum L.
Trial application
Method
Foliar spray
Timing
Indoor: First application 42 days after planting, followed by 2 treatments 51 and 56 days after plantin;, Outdoor: First application at least 30 days after planting, followed by 5 treatment with a 6-days interval
Rate
2.10 g/L
2012
Use of Phosphonate to Manage Foliar Potato Late Blight in Developing Countries
Plant Disease
96
1008-1015
Crop group
