-52- 
. NARCISSUS BULB ELY ( Merodo n equ estris Fab. ) 
Washington. R. Schopp and C. F. Doucette (February); Pupation .- stai 
when the first seasonal observations were "began at Sumner on February 
26. However, onlv 7*15 percent of the sarrples examined were pupae. 
Most of the remainder were still in the larval stage in the bulbs. 
A BULB THPJ.PS (Li othrlos vane eckei Pries sner) 
Washington. R. Schopp (February): Throughout the month the proportions of 
thrios in the several stages were verv near what appears to "be normal 
for the winter; that is, nearly jd percent each of adults and seco - .' - 
instar larvae and 2 or 3 Percent of first-instar larvae. No \ s or 
pupae have been found. Apparently the cool weather, with occasional 
frost and light freezing, has kept the soil temperature low enc - to 
prevent any perceptible development. There has been little change in 
the proportion of the sexes. 
BULB MITE ( Bhizoglyphus h y.cinthi Edv. ) 
Tennessee. G. M. Bent lev (March): The bulb mite is general in narcissus 
Plantings at Chattanooga and Knoxville. 
PERIWINKLE 
LILY APHID ( Myzus circumflexus Buckton) 
California. E. 0. Essig (March 22): The lily aphid was common on Vinca 
major at Blocksburg on March 20 and on the same host at Berkeley on 
March 10. 
RHODODENDRON 
jEON WHITEFLY ( Dialeuroaes chittendeni Laing) 
Washington. R. Latta (February): Weekly observations at Sumner sh own 
a gradual change from second*-instar to third-instar larvae, but ouuae 
arc in about the same proportion as in January. Sootv mold is 
to show on the undersides of heavily infested leaves. On Feb 1 - rv 11 
a large ornamental planting of rhododendron at the Highlands, Seattle, 
was sprayed. On February 26 spraying was started nother state at 
the Highlands. There are over 1,500 slants on this place, practically 
all of them carrving more or less infesl ■ : . On t . s date a f 
heavilv infested plants in a small ornamental plant were so 
