Clover mites . They are now leaving their winter hibernation sites. When their 

 hiding places beneath siding and in cracks and crevices are warmed by the sun, 

 these mites move to window sills and walls on the east and south sides of the 

 house. Clover mites are tiny, orange- to -black moving specks about the size of 

 the period at the end of this sentence. They cover furniture, curtains, window 

 sills, and walls. Although harmless, clover mites leave an unsightly stain when 

 mashed. 



Pick them up with a vacuum cleaner or use an 0.1-percent pyrethrin spray from a 

 pressurized spray can for a quick knockdown. Before fall, remove the grass, 

 clover, and weeds next to the foundation so there is a strip of soil at least 

 18 inches wide. This bare soil will serve as a barrier to the mites. 



WELDS 



NEW HERBICIDE CLEARANCES FOR 1971 



Preforan . It has recently received clearance for preemergence use on soybeans. 

 It is available as a 3-pounds-per-gallon emulsifiable concentrate and 15-percent 

 granules. The broadcast rate is 5 to 6 quarts of the emulsifiable concentrate 

 or 25 to 30 pounds of the granules. Preforan should control grasses, pigweed, 

 and smartweed. Control will be somewhat erratic on ragweed and jimsonweed. Little 

 control is expected of cocklebur, morningglory, or velvetleaf. 



AAtrex-Princep (atrazine-simazine) . This is cleared as a 1-to-l tank mix. It 

 will control fall panicum and crabgrass better than AAtrex alone. Rates for the 

 mix are one-half the rate of each component when used alone. 



Lasso + Chloro-IPC (alachlor + chlorpropham) . It has received clearance as a 



tank mix. The rate is 2 to 5 quarts each per acre. The purpose of this mix is 



to improve the control of smartweed and a few other broadleaf weeds over the con- 

 trol obtained with Lasso alone. 



Treflan . The label now allows the use of a field cultivator for incorporation. 

 The rules of thumb to follow when incorporating with a field cultivator are: 

 (1) sweeps, not points; (2) penetration, 3 to 4 inches; (3) speed, 4 to 5 m.p.h. ; 

 (4) repeat at right angles ; and (5) use a drag harrow to pull treated soil in be- 

 hind the back shanks. Other tools such as the double disk or mulch treader may 

 be preferable. 



Sutan . Note this supplemental statement: "If it is too late to plant corn again, 

 soybeans may be planted providing no atrazine was used with the Sutan. Do not 

 plant soybeans sooner than 21 days after application of the Sutan." 



OTHER INFORMATION 



Musk thistle . This is a biennial weed, now on the increase in some areas of 

 Illinois. April is the ideal time for control, while the weed is still in the 

 rosette stage and before the seed stalk forms. Control is usually best when 

 the plant is actively growing and temperatures are above 75° F. 



For spot treatment, add 1 quart of 2,4-D ester (4 pounds per gallon) and 1 cup of 

 surfactant or household detergent per 25 gallons of water. Spray until moist. 

 For larger infestations, use 1 to 1.5 quarts of 2,4-D ester in 20 or more gallons 

 of water per acre. 



