Applying MaxCel or Cilis Plus in combination with the hormone thinner, NAA (naphthaleneacetic acid), either as a tank-mix or separate sprays during the same growing season may result in pygmy fruit in prone cultivars (i.e., Fuji, Red Delicious, Golden Delicious and Gala).
When Sevin is used for fruit thinning, extensive bee kills can occur if weeds or legumes are blooming in the ground cover. To minimize bee kills, remove bees from the orchard prior to treatment. Do not spray when the wind will carry Sevin to adjacent weedy or crop areas in bloom. Advise local beekeepers of your spray activity.