Agenda - Council - 12/22/1987 - Laserfiche WebLink

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U~e cf Chemicals: Good cultural practices ~hou!d first be attempted prior to conditioning chemhcal controls of weeds, diseases, and insects. The~e would include proper mowing l:eigb~, correct ~rrJg. atJon, maintaining ~dequate fertilize:ion, ~nd ~electing weed-free ~ed or ~old. The choice of control method ~hould be predicated on ~afety, both to the applicator, public, and the environment, and to its proven effeotiveness and how economical it is. If an)' chemical is used, it shall only be applied under the direction of a licensed applicator in accordance with manufacturer's precaution,.s and directions amd approved industry practice. Weed Control: .The need to control wee~s in turf areas is when weeds present a visible problem. In mo~t areas, weed control will be limited to controlling noxious weeds. Treat weeds only when soil moisture levels are good and when weeds are actively growing. Most broadleaf weeds in turf areas should be eliminated in mid to late spring or ear.~y summer by one or t~'o applications of 2, 4, 5-TP, MCPP, bicamba, or a combination of these chemicals. 2, 4-D, and related compounds can be applied as a dry formulation with fertilizer or other C~.-r ierc . Prevention of crabgrass and pos annua should begin in mid to late April utilizing preemergence applications of Bensulide, Benefin, DCPA, or equivalent. If preemergen', ci~ica!$ are n~: applied, postemcrgent =ateria!~ such as the organic arsenicals (!M~SA, DS}ik) should be used in late spring cr early summer. Insect, Rodent, and Disease Contre!: An insect, rodent, or disease ccntro! program to prevent a!! co.~on turfgrass · ~ ~'-~ se-ions damage will be provided znsects, rodents, and disease f.~_ caus.~ ~ ~ - ._ Wh insecticides -re used, they should be ~.~y on an ~s needed ~a~: s. em ~ ~!ied.. ~ late ~:-~-_-_. or ~zr' f-!~ . when inse~ts are young. . and easily killed. ~ae most ~ractical appreach to disease control is to use the best adapted =oecies. cr disease resistant ~='~-;=-~s cf .... .... =grasses, '~'atering ami lrrigatio= adecuate moisture to: hand wa~ering, oper='icu of '. ..... ' ~rooe= util:--tion of Adequate soil moisture will be dete~ined by progr~=,-ing :he irrigation system as f o!i~ws: a) Adjusting amd se::~' ..rig cf the =~":oma=ic com=ro!!er to establish= frequency amd length of vate. rimg period; Con£~'dera=ien mu~t be givem to the sgi! conditions, humidity, ~:-:-:~ing~_____- runoff, and the r-~i-'ticnship~ cf ccndi:iozs vhich ~.-=feat Page 59