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2-Swollen bud (pear)


Still of concern at swollen bud is pear psylla. Oil application would be the first IPM strategy, applied as soon as adults are present, usually the first nice warm day in April. If oil application is impractical, use an effective insecticide when adults are present. A high rate copper application for fire blight is also a good IPM strategy at this time.

INSECT IRAC PRODUCT RATE/acre

REI

Hours

PHI

Days

EFFICACY COMMENTS
Pear psylla 3A Danitol 2.4 EC 16 to 21 fl oz 24 21 excellent  
  NA Damoil 3 to 6 gal 4 0   don't apply below 32 degrees F.
  NC SuffOil-X 1 to 2% 4 0   OMRI
  7C Esteem 35WP 4 to 5 oz 12 45 good  
  3A Warrior II 1.28 to 2.56 fl oz 24 21 excellent  
  3A Mustang Max 0.8 EC 1.28-4 fl oz 12 14    
  4A Actara 5.5 oz 12 35

High

 
  4A Assail 30 SG 4 to 8 oz 12 7 moderate  
  4A/15 Cormoran 20 to 28 fl oz 12 12    
  4D Sivanto Prime 10.5 to 14 fl oz 4 12 HIGH  
  4C Transform WG 2.75 oz 24 7    
  5 Delegate 25 WG 4.5-7 oz 4 7 High  
  7C Esteem 35 WP 4 to 5 oz 12 45 High  
  16 Centaur 0.7 WDG 34.5-46 oz 12 3 High  
  21A Portal 0.4 EC 2 pt 12 14    
  28 Exirel 13.5-20.5 fl oz 12 3    
  28 Verdepryn 100SL 5.5 to 11  oz 4 7    
    Surround 95 WP 25-50 lb 4 0 moderate must maintain coverage
    Grandevo 2 to 3 lb 4 0   OMRI listed
    Venerate XC 2 to 4 qt 4 0   OMRI listed