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International Society of Arboriculture
Arboriculture & Urban Forestry (AUF) December 1980, 6 (12) 326; DOI: https://doi.org/10.48044/joa.1980.6.12.326
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Bramble, William. 1980. Sound right-of-way program must include plant ecology. Weeds Trees & Turf 19(1): 16-18.

Plant ecology is the science which treats of relations between plants and their environment — a reciprocal relationship. An understanding of these ecological relationships is basic to sound ROW management. To simplify and make something useful and understandable out of the complex ROW situation is the most difficult task in application of ecology to management. One of the leading tenets in an ecological approach to ROW management is the stability of shrub communities. The concept is that pure shrub patches on ROWs, once established and trees removed from them, are stable and resist tree invasion. The sequence of events which takes place after a ROW is cleared through a forest has some very interesting ecological aspects which are also a key to what occurs in older ROWs.

Thimann, Kenneth. 1980. Scientist defends use of 2,4-D. Agrichemical Age 24(2): 29.

2,4-D is the most generally useful of all herbicides. Its discovery arose from the work on natural plant hormones, to which it is related. It is harmless to man, it is rapidly destroyed by bacteria in the soil (and to nontoxic breakdown products), and lastly it has the special ability to kill broadleaved plants (technically dicotyledons) without harming the narrowleaved group (monocotyledons), a group that includes the grasses, wheat, barley, corn, rice, etc. It has been in regular use throughout Europe and North America since about 1948, i.e., for 31 years, and in that time the only damage to human ascribed to it, as far as I know, was to a few who deliverately drank it for suicidal purposes. Now some pesticides are indeed toxic to humans. When EPA made the mistake of banning the insecticide DDT, farmers and others resorted to malathion and other organophosphates which are toxic, and those have accounted for over 60% of the hospitalized cases of pesticide poisoning in 1976-77.

  • © 1980, International Society of Arboriculture. All rights reserved.
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Arboriculture & Urban Forestry (AUF)
Vol. 6, Issue 12
December 1980
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