ALFLALFA LONGEVITY AN IPM STRATEGY ALAN GOTLIEB University of Vermont.
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ALFLALFA LONGEVITYALFLALFA LONGEVITYAN IPM STRATEGYAN IPM STRATEGY
ALAN GOTLIEBALAN GOTLIEB
University of VermontUniversity of Vermont
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The MAJOR ProblemsThe MAJOR Problems
• FusariumFusarium• Clover root curculioClover root curculio• VerticilliumVerticillium• PhytophthoraPhytophthora• AphanomycesAphanomyces• Winter hardinessWinter hardiness• Harvest frequencyHarvest frequency• Potato leaf hopperPotato leaf hopper
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SMOOTH FIELDSMOOTH FIELD
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NOTE ROUGHNESS HERENOTE ROUGHNESS HERE
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THINNING FIELDTHINNING FIELD
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ALFALFA ALFALFA CLOVER ROOT CLOVER ROOT
CURCULIO FUSARIUM CURCULIO FUSARIUM COMPLEXCOMPLEX
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CLOVER ROOT CURCULIOCLOVER ROOT CURCULIO
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SITONA HISPIDULUSSITONA HISPIDULUS
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FUSARIUM ROOT ROTFUSARIUM ROOT ROT
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The MAJOR ProblemsThe MAJOR Problems
• FusariumFusarium• Clover root curculioClover root curculio• VerticilliumVerticillium• PhytophthoraPhytophthora• AphanomycesAphanomyces• Winter hardinessWinter hardiness• Harvest frequencyHarvest frequency• Potato leaf hopperPotato leaf hopper
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Verticillium WiltVerticillium Wilt
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PHYTOPHTHORA ROOT ROT PHYTOPHTHORA ROOT ROT
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APHANOMYCESAPHANOMYCESROOT ROOT ROTROT
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The MAJOR ProblemsThe MAJOR Problems
• FusariumFusarium• Clover root curculioClover root curculio• VerticilliumVerticillium• PhytophthoraPhytophthora• AphanomycesAphanomyces• Winter hardinessWinter hardiness• Harvest frequencyHarvest frequency• Potato leaf hopperPotato leaf hopper
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Factors That Increase the Risks of Winter Injury in Alfalfa
• Potato Leafhopper damage
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STAND LONGEVITY STAND LONGEVITY VS VS
HARVEST FREQUENCYHARVEST FREQUENCY
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CONTROLCONTROL
• ROTATE TWO YEARS MINIMUMROTATE TWO YEARS MINIMUM• USE RESISTANT VAR (Fusarium, USE RESISTANT VAR (Fusarium,
Verticillium, Phytophthora, Verticillium, Phytophthora, Aphanomyces)Aphanomyces)
• USE HARDINESS SUITABLE FOR USE HARDINESS SUITABLE FOR AREA (2 & 3 more northern) AREA (2 & 3 more northern)
• USE 3 CUT HARVEST SYSTEMUSE 3 CUT HARVEST SYSTEM• Use leaf hopper resistant varietiesUse leaf hopper resistant varieties
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The MAJOR ProblemsThe MAJOR Problems
• FusariumFusarium
• Clover root curculioClover root curculio
• VerticilliumVerticillium
• PhytophthoraPhytophthora
• AphanomycesAphanomyces
• Winter hardinessWinter hardiness
• Harvest frequencyHarvest frequency