EE —<—__— 
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aided Dr. F. X. Williams in 1928 in the rearing of egg parasites, Anaphoidea 
—S 
calendrae, while the station staff worked out the life historics, as far as 
possible, of the parasites of this noxious webworm. « pewildering assort- 
ment of parasites wos accumulated, including among the flies Tortriciophaga 
tortricis Coq., Leskiomima tenera Wied., Siphovhy to floridensis Towns., and ) 
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Lixophava variabilis Coq. 5 and ar among the hymenoptera, angitia n. sp., 
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apanteles n. sp., avantcles epinotiae Vier., Microbrzcon mellitor Say 
Bassus buttricki Vier., Cremastus epazozes Cush., and Chelonus alt bi tudinis ; 
Vier. 
Extensions in wheat jointworm colonies:--as reported by T. R. Chember- 
in, Forest Grove, Oreg., considerable spread of Harmolita tritici Fitch 
was found in the southern and southwestern parts of the Lebanon colony, 
the jointworm being found in one field 2 miles north of Coburg, Oreg., and 
approximately 7 miles south of the southernmost field in which it had 
previously been found. It was also found in one fiela on the Pacific High- 
way about gn miles south of Junction City, and west of Coburg and the 
Willamette River. In our opinion the jointworm has existed in the region 
north of st for some years and has spread rather slowly, but, owing to 
the widely scattered fields of wheat in the district, has been scarce, and 
we have consequently failed to pick it up in our previous surveys. It was 
not found in fields south and southwest of Juncticn City and vrobably 
eached the Highway 6 miles southeast of Junction City by spreading in a 
southwesterly direction from the ficlds north of Coburg. The jointworm was 
also picked up for the first time in fields along the Willamette River west 
of Curtney Station on the Oregon Electric Railroad. Since this pest has 
been within a fow miles of these folds for some years, it was suspected of 
occurring there without actually be =e picked uy. It was also found on 
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Ingram Island in the Willamette River directly west of these fields. 
In an effort to determine the reasons for the susceptibility of some 
varieties of sugarcane to the suysreane borer (Diatraea saccharalis Fab.), 
Holloway and W. E. Haley, New ee La., have been making a 
Aree number of he asts to datermine the hardness of the rind. It is be- 
eve hardness ni one factor eiieiieneliie susceptibility of 
Sistance. «A special instrument is used, showing the pressure, in pounds, 
required to force a needle at a given size through the rind. 
It has already been proved that soaking sugarcane in hot water will 
kill the sugarcane borer. J. W. Ingram, Houma, ua., now finds that the 
treatment ree kills the larvae, pupae, and adults of the small weevil 
Aneacentrinus sp. although first recorded from stubble, Mr. Ingram has 
recently found the larvae of this weevil in various parts of the stalk, 
even at the ten. The care showld be souked for 20 minutes in water heated 
to 50° C., 1229 F., this treatment giving complete kill. The treatment 
would be advisable for secd cane to be shipped to the uninfested States 
of Florids and Georgia. 
Indiana was 
Chinch bug.--a survey of the affected area in northwestern 
rette, Ind. A 
conpleted on Cct. 19 = Luginbill, Noble, and Painter, Lafa 
total of 65 cornfields were examined in 18 counties. The bugs were abundant 
in & counties, but se ric us injury tc corn was observed only in some fields 
in Lake County. In several cases oats next to corn were never cut, the 
poor crop probably aa Gue oartly to chinch bugs and partly to drought. 
While bugs were sradually leaving corn during October, periodic observations 
in a field near Otterbein, Ind., showed a rapid reduction of bugs between 
Oct. 27 and 30, coincident with the very warm, sunny weather. Evicently there 
was a sudden wholesale noveient tu hibernation. 

