Management of Major Blueberry Diseases - The Southern Region ...

2004 Leaf Spot Trial ResultsPotassiumphosphiteSeptoria leaf Dipotassium spot Anthracnose phosphateFungicide and rate/A Incidence Severity Incidence Severity Defoliation1) Untreated Check 26.8 a 1.3 a 66.4 a 21.9 a 60.0 a2) Aliette 5 lb 0.0 b 0.0 b 11.6 c 2.0 bc 10.4 b3) ProPhyt 4 pt 0.4 b 0.0 b 12.0 c 1.1 c 12.4 bc4) Biophos 4 pt 0.4 b 0.0 b 22.4 b 3.9 b 22.0 b5) Cabrio 20EG 14 oz 0.0 b 0.0 b 8.0 c 0.5 c 10.8 c6) Cabrio 20EG 14 ozalternated with ProPhyt4 pt (2 applicationseach)0.0 b 0.0 b 13.2 c 1.1 c 11.6 bc7) Manzate 75DF 3 lb 1.2 b 0.0 b 9.2 c 0.1 c 13.0 bcLSD (P = 0.05) 7.8 0.4 8.2 2.2 10.9Application dates were 12 Jun, 28 Jun, 12 Jul, and 27 Jul.Dipotassium phosphonate +