PT oD 
Fruit-fly larvae live three days in sea water.--In the March, 1932, 
Monthly Letter reference was made to experiments to determine the lethal 
effect of sea water on larvae infesting kamani nuts, oranges, and guava 
at Honolulu. R. H. Marlowe now reports that "300 Manila mangoes, contain-— 
ing approximately 3,258 larvae were used. * * * It was found that the 
mortality of the larvae in fruits 24 hours in sea water was 97.1 per 
cent; for 48 hours, 99.6 per cent: and it was necessary for the mangoes 
to be in the sea 72 hours or more for 100 per cent kill to be obtained." 
HYi20%6TAa On pecan yield to spray treatments.--The first season's 
experiments conduct by Howard Baker, Shreveport, La., in the control 
of two Species of phylloxera on pecan in southern Louisiana have given 
very encouraging results, which are summarized in the following table: 
@ is 
tg 
a a a ae oer maemo gisipelpeesaicsin tne pars maninbeigmnjnsemees 
Spi 
Reduction in infestation 






a a aaa are eet 
ee eee Det Hehe wt vet a Moly |B enerar ts oot deal atio a 
| Period |P. devastatrix Perg. on |P. notabilis 
| of [Schley variety at | 35 |) Parka seeenenee 
_appli- | Whiteville, |New Iberia, |variety, at 
——_—-iteaiment ___|cation | ba, | ka hibewie) ma, 
| | Percent | Percent | Per cent 
| | | | 
| | 
Lubricating-oil emulsion | 
Bi RDO DLAG. sdhin in. cen crams | Dormant | 74 93 29 
| | | 
Liquid lime~sulphur 1 to 8)" | 91 | -~ 95 
| | | 
Liquid lime-sulphur 1 to 8, | | | | 
plus nicotine sulphate | | 
Ri thc ow Be tii deb, Kemer batt a6 98 85 
Lubricating-oil emulsion | | 
BO SRD si Face ci Petty rest. nvr hg /"Delayed| | | 
dormant" | 67 | 90 83 
Lubricating-oil emulsion | | | 
3 per cent plus nicotine | | | 
SMaONatS.] tor 800 0.402, tuo, | H | 96 | 97 96 
| | 
| 
Liquid lime—sulphur | | | | 
1 1/4 to 50, plus nicotine, | | 
PUL ONE LO. Al 60, B00, rh cx coop ane re | 94 98 93 
Nicotine sulphate 1 to 800, | | | 
plus potash fish—oil | 
SOap 2 pounds in 50 | 
Ede cote, te | i [wot a ORNS! EO 
| | 
| | 
Unsprayed——(galls per twig’ | 6.7 a 24.4 ihe! 
_—_——— ———— = = a ee ae re a. —_ 
————_____. cares pee eo ee ee — ———- Se PEs. Aenereserst=+onsenssvepemsnonms a ee 
