A comparison of sticker adjuvants for their effects on retention and rainfastening of fungicide sprays


  • R.E. Gaskin
  • K.D. Steele




Sticker adjuvants enhance adhesion of pesticide sprays to plant surfaces and increase their resistance to rain This study evaluated the effect of two different sticker adjuvant types organosilicone/latex and terpene based polymers on the retention and rainfastness of a protectant fungicide tolyfluanid on Vicia faba (broad bean) and/or Brassica oleracea (cabbage) foliage On hardtowet cabbage the organosilicone/latex stickers provided better spray retention than the terpene polymers Increasing rates of the former resulted in increased retention of spray while use rate had no effect on terpene polymer performance After 4 mm rain (applied as a heavy rain event) up to 86 of fungicide deposits applied with organosilicone/ latex stickers were retained on cabbage In comparison <45 of deposits containing terpene polymers were retained postrain On easytowet broad bean foliage prerain deposits containing terpene stickers were approx fourfold higher and postrain deposits were much greater than on cabbage There were differences in retention and rainfastening properties between commercial stickers of the same chemical type




How to Cite

Gaskin, R.E., and K.D. Steele. “A Comparison of Sticker Adjuvants for Their Effects on Retention and Rainfastening of Fungicide Sprays”. New Zealand Plant Protection 62 (August 1, 2009): 339–342. Accessed April 2, 2023. https://journal.nzpps.org/index.php/nzpp/article/view/4809.




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