LAWN WEEDS 



AND HOW TO GET 

 RID OF THEM 



COMMON LAWN WEEDS 



^ COMMON 



cmcrwEED 



QUACKGRASS 



YELLOW FOXTAIL 



LAWN \ 

 PENNYWORT 



HEAL ALL 



YARBOW ^"--.^^ 



CRABGRASS CAN BE 

 CONQUERED 



In areas where crabgrass and similar 

 weeds are persistent in lawns the tim- 

 ing of the treatment is important. Crab- 

 grass germinates in the spring and does 

 not survive winter temperatures. Early 

 spring treatments tend to kill the crab- 

 grass seedings as they germinate. Close 

 mowing favors the growth of crabgrass 

 — Bluegrass should be cut no shorter 

 than two inches if crabgrass is a prob- 

 lem. Fertilizing and seeding the vacant 

 spots in the lawn left by weeds should 

 be a regular part of your weed killing 

 program. 



THESE 2-4Don'ts 



IMPORTANT TOO 



The regular use of 2-4D will keep down 

 all of the broadleaved weeds, without 

 danger of poisoning animals, children 

 or of damaging equipment with cor- 

 rosive sprays. In using 2-4D around 

 flowers and vegetables, however, be 

 extremely careful not to allow the spray 

 to drift onto these, as most garden 

 plants are as easy to kill with this ma- 

 terial as the weeds. 

 Here are some other points: use a 

 coarse instead of a fine spray. Don't 

 store it around your seeds or plants. 

 Do not apply in the proximity of cotton, 

 fruit or ornamentals, it may injure sus- 

 ceptible plants. 



WEEDS ARE GRASS 

 ROBBERSl 



Their root systems thrust laterally 

 through the grass roots and steal mois- 

 ture and valuable mineral salts needed 

 by your lawn to insure hardy growth. 

 Some weeds send out runners on the 

 surface which take root, form new plants 

 and proceed to take food from the 

 grass, stunting it, shading newly germi- 

 nated grass and ultimately discouraging 

 growth. Tap roots (the central roots) 

 are weed storage plants from v/hich the 

 lateral root system drav/s its reserve 

 strength. Some weeds can be destroyed 

 by merely spraying weed killing chem- 

 icals on the leaves; others require chem- 

 ical injection at the tap root. Some folks 

 report that the tap root injection of 2-4D 

 is comparatively easy if one of those 

 long spouted oil cans is used. Others 

 require chemical treatment as well as 

 physical removal by hand or with tools. 

 Modern chemical weed killers are se- 

 lective and formulated to do a specific 

 job. Tell us the weed you're going aJter 

 and we can prescribe the remedy for 

 you. Successful weed removal means 

 getting them early — before the flower- 

 ing stage, go after them in the spring 

 or early summer. Weeds should be two 

 or more inches high before spraying 

 however, otherwise the leaf is not 

 broad enough to fully absorb the chem- 

 ical and the tan root will revitalize them. 



2-40, HOW IT HELPS 

 CONTROL 



2-4D is a selective herbicide because it 

 can be used to kill certain plants while 

 the same dosage will not kill others. 

 This selectivity is due to differences in 

 plant susceptibility. It is comparatively 

 slow acting and must penetrate to the 

 inside of the plant tissue to do its work. 

 When it is sprayed on broad leaved 

 plants it first penetrates the outer layer 

 of cells — then to the inner-layer where 

 it is picked up by the leaf veins and 

 circulated into stem and roots along 

 with the fluid of the plant. With most 

 weeds the killing cycle requires about 

 two weeks. Reaction is noticeable when 

 the leaves and stems twist and curl. 

 When it has reached the roots, the cell 

 breakdown makes them vulnerable to 

 attack by the decay organisms always 

 present in the soil. These organisms at- 

 tack the weakened roots and complete 

 decomposition of the weed. 



SPRAY THESE! 



Dandelions can be easily controlled with 

 2-4D. Their root systems are compara- 

 tively simple and being a medium-broad 

 leaved plant the chemical has freedom 

 to work quickly and effectively. It has 

 been found that some regrowth of dan- 

 delions will occur if they are treated 

 when the turf in general is suffering 

 from drought. Lawn weeds are best got- 

 ten when they are green and actively 

 growing. Other weeds which can be as 

 effectively controlled as dandelions are 

 the Common Plantain, Common Chick- 

 weed, Ground Ivy and the Pennywort. 



