comparing the cost and effectiveness of conventional herbicides vs. alternative methods
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Comparing the cost and effectiveness of conventional herbicides vs. alternative methods. Randy Prostak UMass Extension Weed Specialist SUASCO CISMA March 13, 2012. Comparing Non-selective Products. Natural or Organic Products. Products contain: - acetic acid- citric acid - PowerPoint PPT PresentationTRANSCRIPT
Comparing the cost and effectiveness of conventional
herbicides vs. alternative methods Randy Prostak
UMass Extension Weed SpecialistSUASCO CISMAMarch 13, 2012
ComparingNon-selective
Products
Natural or Organic Products
Products contain:- acetic acid - citric acid- clove oil - orange extract
Claim often made “RU alternative”Overall performance - provides foliar burn only - weeds must be young - better on broadleaf than grasses - good spray coverage = inc. $ - many repeat apps. on perennials
Dead from application
Regrowth
Better on broadleaves than grasses dueto location of growing points.
Weak onperennials weeds
Natural or Organic Products
- orange extractRTU - $ 8.95 for 24ozconcentrate - $60 for 1 gallon
- mix spray preparation 19, 25 or 50% v/v- spray output - greater than 50 gal/A
dense perennial weeds > 150 gal/A
Advertisement states “Test shows that new herbicide containing vinegar will control Canada thistle”
Original research looked at seedling Canada thistle - the seedlings of perennial weeds can be controlled as if they were annuals.
20% or 200 grain acetic acid
- 35 fluid oz. ready-to-use - $12.95
- One gallon ready-to-use - $24.95 + shipping
- Four one gallon jugs - $75.00 - free shipping
- Eight one gallon jugs - $150.00 - free shipping
Might be 200 or more gallons per acre.
Might be useful on annual and biennial invasive plants such as:
Japanese stiltgrass Microstegium vimineummile-a-minute weed Persicaria perfoliatagarlic mustard Alliaria petiolata
Might be useful on annual and biennial invasive plants such as:
Japanese stiltgrass Microstegium vimineummile-a-minute weed Persicaria perfoliatagarlic mustard Alliaria petiolata
Could be effective on perennial invasive plants with repeat
applications that would implement carbohydrate starvation.
Japanese stiltgrass Microstegium vimineum
Japanese stiltgrass Microstegium vimineum
Japanese stiltgrass Microstegium vimineum
Japanese stiltgrass Microstegium vimineum
mile-a-minute weedPolygonum perfoliatum or Persicaria perfoliata
mile-a-minute weedPolygonum perfoliatum or Persicaria perfoliata
mile-a-minute weedPolygonum perfoliatum or Persicaria perfoliata
mile-a-minute weedPolygonum perfoliatum or Persicaria perfoliata
garlic mustard Alliaria petiolata
Timing ofManagement Strategies
Year??Species??Strategy??Goal??
Reward (diquat) - contact type - best on annuals, perennials weak- very quick acting
a
Scythe (pelargonic acid) - contact type- great as sucker remover
Finale (glufosinate) - not strongly translocated- annuals, perennials?? - less injury with drift, perennials weak
Roundup Pro, Prosecutor, Touchdown PRO (glyphosate or sulfosate) - strongly translocated - caution to prevent “collateral damage” from drift- beware of thin bark trees- all formulations are NOT the same
Comparing Non-selective Products
AQUAMASTER:$82 for 2.5 gal container
$32.80 per gallon$8.20 per quart
ACCORD:$156.99 for 2.5 gal container
$62.80 per gallon$15.70 per quart
1 quarts/acre = $8.20 to $15.702 quarts/acre = $16.40 to $31.40
glyphosate
Mechanical and/or Hand-pulling. OK or not OK???
Disturbance can be problematic!!
Do your best to prevent the disturbance of soil and leaf-litter layer!
Herbicides might be a better option in some situations or attempts can be made to cover the disturbed area.
HEAVY, MEDIUM, LIGHT, and MINI $82.00 - $189.00
Weed Wrench - good for woody plants
and invasives
Thank you for your attention!! [email protected]
413-577-1738