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

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SummaryTotal fruit weight (g per shoot)Fruit yield vs. leaf spot severity8060402000 50 100 150 200 250Disease severity (average number <strong>of</strong> spots per leaf)Premier, UGA, 2001v Leaf spots reducephotosynthesis andinduce prematuredefoliation.v Both reduce flower budset in the fall and yieldthe next spring.v Leaf spot control neededfor optimal yields onsusceptible cultivars.v Need to develop leafspot thresholds fortreatment.
14Premiere Data12Bluecrisp DataFlower Bud Number12108642Flower Bud Number10864202400120Spots per LeafSpots per Leaf
Page 1 and 2: Management of MajorBlueberry Diseas
Page 3 and 4: aRing nematode counts per 100 cc so
Page 6: Mummy Berryv GA blueberries are pri
Page 9: Indar, Orbit, or TiltandPristine
Page 12 and 13: Ripe Rot Trial ResultsTreatment and
Page 14 and 15: Effect of fungicide treatments on t
Page 16 and 17: Botrytis Blight and Fruit Rot(Botry
Page 18 and 19: OverwinteringBotrytisSclerotiaAPS P
Page 20 and 21: Young leaves are infected through c
Page 22 and 23: Switch, Elevate,CaptEvate, Pristine
Page 24 and 25: Anthracnose (Ripe) Rot
Page 27 and 28: Alternaria Fruit RotAlternaria spp.
Page 29 and 30: Post-Harvest Cooling and RotsPostha
Page 31 and 32: Primary Blueberry Leaf Spotsin Geor
Page 35: Anthracnose Leaf Spotv Caused byGlo
Page 38 and 39: Anthracnose Leaf Spot(Second Type)v
Page 40 and 41: APS Press; Diseases of Small Fruits
Page 42 and 43: Non-PathogenicLeaf Spotsv Most comm
Page 44 and 45: 2003 Leaf Spot Susceptibility Ratin
Page 46 and 47: Disease severityWhat are the effect
Page 50 and 51: Southern Highbush Blueberry Defolia
Page 52 and 53: Georgia currently has 24C state lab
Page 54 and 55: Aluminum tris (O-ethyl phosphonate)
Page 56 and 57: Phosphonatesv Target site is still
Page 58 and 59: Fungicide and rate/A2005 Leaf Spot
Page 60 and 61: Phytophthora Root Rot(Phytophthora
Page 62: Pythium irregulareOogonium of Pythi
Page 65 and 66: APS Press; Diseases of Small Fruits
Page 67 and 68: Experimental Phosphonatesv ProPhyt
Page 69 and 70: 2005 Root Rot ResultsFungicide and
Page 71 and 72: 2006 Phytophthora Root Rot Trialv R
Page 74 and 75: 2006 Results* Griffin, GA Alapaha,
Page 77: APS Press; Diseases of Small Fruits
Page 80 and 81: Lessons Learnedv Fertility levels a
Page 82: Necrotic Ringspot VirusAPS Press; D

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

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