ALFLALFA LONGEVITY AN IPM STRATEGY ALAN GOTLIEB University of Vermont.

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Presentation transcript:

ALFLALFA LONGEVITY AN IPM STRATEGY ALAN GOTLIEB University of Vermont

The MAJOR Problems FusariumFusarium Clover root curculioClover root curculio VerticilliumVerticillium PhytophthoraPhytophthora AphanomycesAphanomyces Winter hardinessWinter hardiness Harvest frequencyHarvest frequency Potato leaf hopperPotato leaf hopper

SMOOTH FIELD

NOTE ROUGHNESS HERE

THINNING FIELD

ALFALFA CLOVER ROOT CURCULIO FUSARIUM COMPLEX

CLOVER ROOT CURCULIO

SITONA HISPIDULUS

FUSARIUM ROOT ROT

The MAJOR Problems FusariumFusarium Clover root curculioClover root curculio VerticilliumVerticillium PhytophthoraPhytophthora AphanomycesAphanomyces Winter hardinessWinter hardiness Harvest frequencyHarvest frequency Potato leaf hopperPotato leaf hopper

Verticillium Wilt

PHYTOPHTHORA ROOT ROT

APHANOMYCESROOTROT

The MAJOR Problems FusariumFusarium Clover root curculioClover root curculio VerticilliumVerticillium PhytophthoraPhytophthora AphanomycesAphanomyces Winter hardinessWinter hardiness Harvest frequencyHarvest frequency Potato leaf hopperPotato leaf hopper

Factors That Increase the Risks of Winter Injury in Alfalfa Potato Leafhopper damage

STAND LONGEVITY VS HARVEST FREQUENCY

CONTROL ROTATE TWO YEARS MINIMUMROTATE TWO YEARS MINIMUM USE RESISTANT VAR (Fusarium, Verticillium, Phytophthora, Aphanomyces)USE RESISTANT VAR (Fusarium, Verticillium, Phytophthora, Aphanomyces) USE HARDINESS SUITABLE FOR AREA (2 & 3 more northern)USE HARDINESS SUITABLE FOR AREA (2 & 3 more northern) USE 3 CUT HARVEST SYSTEMUSE 3 CUT HARVEST SYSTEM Use leaf hopper resistant varietiesUse leaf hopper resistant varieties

The MAJOR Problems FusariumFusarium Clover root curculioClover root curculio VerticilliumVerticillium PhytophthoraPhytophthora AphanomycesAphanomyces Winter hardinessWinter hardiness Harvest frequencyHarvest frequency

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