-4- 



Lasso should be used for surface -applied preemergence application, at planting time or soo 

 after. Rates should center at about 2 pounds of active Lasso per acre- -2 quarts of the 

 liquid, or 20 pounds of granules- -on a broadcast basis. Reduce the rate proportionately i 

 you're banding. Rates can be safely varied 1/2 pound either way, depending on soil type 

 and the degree of control desired. 



TREFLAN CARRY-OVER 



Some treflan used on soybeans in 1967 carried over and affected a few 1968 cornfields. 

 Low rainfall conditions in the fall and spring of 1967 probably contributed to a slower 

 degradation of the Treflan. Most of the fields where the problem occurred had only been 

 disked or chisel -plowed. 



Using a moldboard plow dilutes the herbicide more than disking or chisel -plowing. To avoi 

 carry-over problems, uniform and accurate applications of no more than recommended rates 

 are important. 



The results of one experiment indicate that the granule may have a longer persistence thai 

 the liquid formulation. 



Although the Treflan residue problem was not widespread or serious, some consideration and 

 caution seems appropriate, in order to avoid any possible problems in 1969 and 1970. 



HOMEOWNER WEED PROBLEMS 



Prevent crabgrass . Crabgrass is especially widespread in southern Illinois, but it is a 

 serious lawn problem throughout the state. If you've had crabgrass in your lawn in past 

 years, consider using a herbicide. 



Today, many excellent preemergence herbicides are available that will prevent crabgrass ir 

 festations. Often, these materials will control other annual grasses and some broadleaf 

 weeds as well. Used as directed, the materials give consistent crabgrass control when 

 applied to established Kentucky bluegrass lawns. 



Most of the preemergence chemicals are sold to the homeowner in dry form for application 

 with a lawn spreader. Pay particular attention to proper spreader setting, in order to 

 realize the desired results. 



Preemergence materials should be applied early in the season before the crabgrass seed 

 germinates. A rule of thumb often used is to apply the chemical before the petals of the 

 early blooming magnolia fall. 



PLANT DISEASES 



CONTROL DAMPING-OFF OF SEEDLINGS 



Vegetable, flower, tree, and other seedlings may suddenly wilt and wither or collapse fror 

 a decay that strikes at the ground line or below. Usually, the decay is caused by soil- 

 borne fungi. 



Damage is most common in cold, heavy, wet soils and in shady areas where air circulation 

 is poor. One answer is to grow plants in soil that has been treated with a broad-spectrum 

 soil' fumigant. Once damping-off starts, here's what can be done to save the rest of the 

 seedlings. 



