WEEDS 



Field Crop Weeds 



It is too late now for Atrazine and oil applications. Most weeds are too large 

 for good control, and late applications could result in Atrazine residue problems 

 in the soil next spring. 



If you apply Treflan now for late-planted soybeans, there may be some chance of 

 injury to fall-seeded grain from such a late application. 



Kith the cool wet weather of late May and other factors, we perhaps have had more 

 than the usual amount of crop injury from herbicides this year. For aid in 

 recognizing herbicide injury symptoms, refer to pages 51-54 of the 1966 Custom 

 Spray Operators' Training School Manual; the February, 1967, issue of Crops and 

 Soils Magazine ; or the July, 1968, issue of Successful Farming . 



Lawn Weeds 



One of the best ways to combat weeds in a lawn is to maintain a dense stand of 

 grass. Heavy rains in much of Illinois have helped, in many instances, to cause 

 a need for additional fertilizer, especially if the lawn is to be kept looking 

 its best. 



Summer fertilization of the grass should be done with care. Follow the recommenda- 

 tions for summer fertilization on the fertilizer bag. If directions are not on 

 the bag, then directions for summer lawn fertilization and ways to prevent fertil- 

 izer burn can be found in Circular 982, Keeping a Lawn, available from your county 

 Extension adviser in agriculture. 



Crabgrass in lawns is becoming noticeable in much of Illinois. If you failed to 

 get a preemergent herbicide on early, you might want to treat with one of the 

 summer crabgrass control materials such as DSMA or AMA. Two or perhaps three 

 applications of these materials are usually needed to achieve satisfactory con- 

 trol. Often materials of 2,4-D type for control of broadleaved weeds are included 

 with the crabgrass materials to give a broader spectrum of weed control. 



SPECIAL NOTE: 



Field days, featuring agronomy research programs, will be conducted at research 

 centers throughout Illinois this summer. Representatives from the U. of I. will 

 be present to discuss research programs on these fields . 



TIME FIELD 



DATE 



June 26 

 June 27 

 July 25 

 Aug. 16 

 Aug. 19 

 Aug . 26 

 Aug. 27 

 Sept. 4 



TIME 



10:00 a.m. 



6:30 p.m. 



1:00 p.m. 



10:00 a.m. 



4:30 p.m. 



6:00 p.m. 



4:30 p.m. 



9:00 a.m. 



FIELD 



*DeKalbI/ 



*Carlinville 

 *Carbondale_/ 



*Dixon Springs^.' 



Kewaneei/ 



Aledo 



Hartsburg—/ . 

 * Browns town—' 



DATE 



1/ 



Sept. 



4 



6:00 p.m. 



Carthage 



Sept. 



5 



1:00 p.m. 



*Carlinville 



Sept . 



5 



1:00 p.m. 



Toledo 



Sept. 



6 



1:00 p.m. 



Oblong 



Sept. 



9 



1:00 p.m. 



*Newton 



Sept. 



L2 



8:00 a.m. 



*Urbana 



Sept. 



K> 



1:00 p.m. 



Dixon 



Sept. 



17 



1:00 p.m. 



Elwood 



T7 Food will be available. 



2/ Sponsored jointly by Southern Illinois University and the University of Illi- 

 nois. All other meetings are sponsored by the University of Illinois except 

 as noted. 



* Includes weed control research. 



