Some weed trees can be removed by ___________ methods. Some of these can be sold as
________ or _________.
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mechanical, pulp, fuel
Pest control decisions must...
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minimize the adverse effects and weigh them against the benefits
Chemical precommercial thinning
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removing all excess trees in a young forest by applying chemicals to
individual trees. herbicides labeled for basal spraying, cut-surface
application, trunk injection, frilling, or stump treatment may be used for this
purpose
Plantation weed control
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using herbicides for selective weed control to ensure survival and rapid
growth of planted tree seedlings, this is one method of animal habitat
management
_____________________ are used for general or selective control of susceptible brush species.
If the brush is not over 20 feet high, ______________________ may be used for ground
application. ___________ are usually used on taller vegetation.
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, Broadcast application of foliar herbicides
Frilling
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encircling the bole with a series of overlapping single ax cuts which
penetrate the cambium, herbicide must be applied to ensure the kill by
preventing bridging
Fall foliage spray
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application in late summer to early fall, generally used with readily
translocated herbicides
How to control sucking insects?
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contact insecticides must be used as sprays (coverage is seldom complete),
systemic insecticides within the tree have better control potential
Defoliators include:
________ or _________.
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mechanical, pulp, fuel
Pest control decisions must...
,Give this one a try later!
minimize the adverse effects and weigh them against the benefits
Chemical precommercial thinning
Give this one a try later!
removing all excess trees in a young forest by applying chemicals to
individual trees. herbicides labeled for basal spraying, cut-surface
application, trunk injection, frilling, or stump treatment may be used for this
purpose
Plantation weed control
Give this one a try later!
using herbicides for selective weed control to ensure survival and rapid
growth of planted tree seedlings, this is one method of animal habitat
management
_____________________ are used for general or selective control of susceptible brush species.
If the brush is not over 20 feet high, ______________________ may be used for ground
application. ___________ are usually used on taller vegetation.
Give this one a try later!
, Broadcast application of foliar herbicides
Frilling
Give this one a try later!
encircling the bole with a series of overlapping single ax cuts which
penetrate the cambium, herbicide must be applied to ensure the kill by
preventing bridging
Fall foliage spray
Give this one a try later!
application in late summer to early fall, generally used with readily
translocated herbicides
How to control sucking insects?
Give this one a try later!
contact insecticides must be used as sprays (coverage is seldom complete),
systemic insecticides within the tree have better control potential
Defoliators include:
