In this newsletter:<\/p>\n
Cherries will become susceptible to SWD once about 20% of fruit begin to blush. Sweet cherries have reached this stage. Sour cherries are still green. Adult SWD flies will puncture the skin when they lay their eggs inside ripening fruit. This leads to brown rot and decay. SWD has not yet been found in IPM traps in Maine, according to David Handley, but has shown up in New York and Massachusetts.<\/p>\n
Our earliest sweet cherry variety has started to turn light red, but has at least one week before it will be ready to harvest. Most varieties will be ready when they turn dark red and some are not at their best until almost black. At this time, it\u2019s critical to know the preharvest intervals (PHI)<\/strong> for cherry.<\/p>\n These materials have the longest PHI for cherry:
\nQuash \u2013 14 days
\nTopguard \u2013 7 days
\nCAPTAN \u2013 7 days<\/strong>
\nMost other fungicides are less than 2 days
\nGladiator EC\u2013 21 days
\nDiazinon \u2013 21 days
\nMinector Pro \u2013 21 days
\nASANA \u2013 14 days<\/strong>
\nActara \u2013 14 days
\nEndigo ZC \u2013 14 days
\nVoliam Xpress \u2013 14 days
\nBesiege \u2013 14 days
\nWarrior II \u2013 14 days
\nMustang Max \u2013 14 days<\/p>\n