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Elements of IPM for Cucumber, Melon, and Summer Squash in NY State

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Insects Diseases Rotation Weeds

Major Insects

angular leaf spot 1 year annual broadleaves
striped cucumber beetle bacterial leaf spot 1 year annual grasses
spotted cucumber beetle bacterial wilt NA perennial broadleaves
aphids Alternaria 2 years perennial grasses
  anthracnose 2 years  

Minor/Sporadic Insects

Fusarium crown and fruit rot 5 years  
squash bug Fusarium wilt (melons) 7 years  
western corn rootworm downy mildew NA  
seed maggot gummy stem blight (black rot) 2-3 years  
cutworms Phytophthora >3 years*  
spider mites powdery mildew NA  
  Septoria leaf spot 2 years  
  sudden wilt (melons) NA  
  Ulocladium 2 years  
  Viruses NA  
  damping off NA  
  white mold 3 years  
* - duration of rotation uncertain
NA - not applicable

A. Site Preparation and Selection Acreage Goal

1) Review previous season’s weed map/list of fields to choose appropriate weed control strategies. See the Weed Assessment List available for use in satisfying this element. 50% 10
2) Crop rotation: 2-3 years away from cucurbits, more if needed for diseases indicated in table above. 75% 10
3) Avoid peppers, tomatoes, and eggplant in rotation with cucurbits to minimize disease problems 25% 3
4) Nutrient management: soil test at least every third year. Fertilize according to test recommendations. 100% 10
5) Do not apply all nitrogen at planting: sidedress or topdress part of the total N application during the growing season. 75% 10
6) Bonus: use trickle irrigation and fertigation 10%
7) Choose sites with good air drainage; not surrounded by woods 25% 3
9) If manure is applied to field, apply only before planting and incorporate 100% 10
B. Planting    
1) Resistant varieties: Choose disease resistant varieties and varieties less-preferred by beetle pests when available and feasible 50% 10
2) Use fungicide treated seed. Use seeder box treatment for seedcorn maggot only if conditions dictate 100% 10
3) Turn under any cover crop residue 3 weeks before planting to avoid seedcorn maggot 50% 5
C. Pest Management    
1) Calibrate sprayer at least once per season or every time nozzles are changed 100% 10
2) Scout for insects and diseases as recommended in IPM procedures 25%
3) Follow thresholds for pests that have established thresholds 25%
4) Follow management guidelines in the Cornell IPM recommendations or scouting guidelines for pests that do not have thresholds 75% 10
5) Select fungicides based on a resistance management strategy 50% 10
6) Choose labeled pesticides with the lowest environmental impact 10% 3
7) Keep records of pest populations, pesticide applications, and cultural practices 100% 10
D. Post Harvest

1) If washing crop, chlorinate wash water and maintain proper chlorine levels. 100% 10
2) Make late season weed map/list for use the following season. See the Weed Assessment List available for use in satisfying this element. 50% 5
3) Disk down fields after harvest 50% 10
4) Establish a cover crop to scavenge nutrients and control weeds or use spot applications of translocatable herbicide for control of perennial weeds 50% 10

revision date: 2001

Total points available (excluding bonus points): 179

Points needed to qualify: 143

10 bonus points available



Specific information on how to apply and use these IPM elements can be found in the following publications:

2000 Cucurbit IPM Scouting Procedures, IPM Bulletin 113

Integrated Crop and Pest Management Guidelines for Commercial Vegetable Production.

A Method to Measure the Environmental Impact of Pesticides. 1992. New York Food and Life Sciences Bulletin Number 139.

Contact the Frank A. Lee Library to view these publications.