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11 Cards in this Set
- Front
- Back
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a WEED is a undesirable plant
when does a plant become a weed? |
when it becomes either a:
hazard nuisance causes injury people pets poisonous skin irritations infections |
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weeds are a major problem in turf and ornamental settings.
they compete w/ good plants for light water nutrients. But unsightly turf & ornamental weeds ... |
detract from orderly appearance in residential & public grounds.
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WEEDS DO not prosper where ample competition of desirable vegetation occurs. BUT, ...
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if neighboring vegetation isn't healthy, doesn't grow aggressively, weeds spring up in any opening
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underlying principle in weed mang. is to ...
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maintain a healthy and vigrous stand of good vegitation ornamental plants or turfgrass. If that stand is not healthy, OR ground b/c disturbed, weeds happen
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people us to chop do anything to destroy weeds. Now they used chemicals which ...
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increased ability to manage weeds economically and efficiently. it takes very little or no herbicide use.
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use of herbicides requires knowledge and skills to handle and apply ...
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herbicides properly and safely.
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IWM = INTEGRATE WEED MANAGEMENT
incorporates prevention mechanical cultural chemical practices into a weed program. IWM prevents needless herbicide use by following what 3 issues? |
issues of:
state and federal regulatios state and feferal enviromental basic economics for both (why? prevents needless use and protects enviro) |
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to properly design an IWM plan against a part weed, first ...
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identify the weed and learn something about its:
biology habits to decide whether the weed needs controlling OR how it CAN be controlled. figure out how that weed invaded the landscape. |
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Is a weed there b/c of:
watering shading overuse whatever that is NOT promoting a healthy turfgrass or ornamental planting? So what? |
so evaluate control tatics
determine costs of measures evaluate inpact of controls on enviro. also some mechanical practices might cause bad site or plant damage. |
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so what is the best approach to turf and ornamental weed control?
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consider:
PREVENTION (why did the weeds invade in the first place)((too much water? Too much shading?))(((what is not promoting hearthy turf or ornamental growth?))) Mechanical (hoeing chopping mowing weeds can do it w/o chemicals) CULTURAL (fertilizing pruning thinning tilling rotating) Chemical is using pesticides |
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chemical control is only one IWM option and requires special consideration. why?
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herbicides do really work BUT
abuse of chemcials harm people and enviro. |
