-94- 
In one series of experiments begun in May and repeated in July and 
August 1944, DDT was thoroughly mixed with tha top 9 inches of garden 
soil and wireworms were caged within the treated soil. The mortalities 
at the end of 6 weeks' to dosages of 16, 32, 48, and 320 pounds of DDT 
per acre were 63, 69, 85, and 98 percent, respectively, as compared 
with 27 percent in untreated soil. The surviving wireworms, many of which 
were inactive, were placed on moist blotting paper in salve tins and ob- 
served for an additional 6 weeks. The mortality at the end of the 10 
weeks was 99 percent for the 16-pound dosage and 100 percent for the 
others.— White (373) . 
Limonius spp. 
Dusts containing 5 or 10 percent of DDT were used at the rate of 1 
pound per 100 pounds of potato seed pieces. Treatments were made and 
potatoes planted on April 19 in experiments on two fprms. Wireworm lar- 
vae were first noted feeding on the seed pieces on May 7. Treatments 
had no effect on wireworms and did not affect the growth of the potatoes. 
— N. J. Agr. Expt. Sta. (276) . 
Eumolpidae 
Glyptoscelis squamulata Crotch, the grape bud beetle 
In preliminary tests DDT gave favorable results .--Baker and Porter 
(81). 
Meloidae 
Rplcauta lemniscata (F.), three-lined blister beetle 
Macrobasls fabricii (Lee), the ash-gray blister beetle 
Tests with a 3-percent DDT dust gave complete control in 18 hours. 
— Okla. Agr. Expt. Sta. (278 ); Hamilton (200 ) . 
Epicauta spp», blister beetle 
A 3-percent DDT dust was effective in Missouri.-- Has eman ( 203) . 
A knapsack sprayer was used in making 5 applications of 20-percent 
DDT spray on early potatoes and 3 applications on late potatoes. Blister 
beetles were not serious .--Gould ( 184 ) * 
Ostomidae 
Tenebroides mauritanicus (L.), the cadelle 
In the first test as described under Sitophilus oryza , at the end of 
5 weeks, 20, 48, and 76 percent of the lari^ae were still alive in the 
