Harry B. Weiss.
The Coccidae of New Jersey Greenhouses.
Psyche 23(1):22-24, 1916.

This article at Hindawi Publishing: https://doi.org/10.1155/1916/56913
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22 Psgche [February
This past summer, however, the secret of its habitation was dis- covered by Miss Cora H. Clarke of Boston, who made an interesting collection of Juncus galls near Magnolia Village, Mass., on August 17, which she shared with the writer.
At this date the galls con-
tained only unknown nymphs of a Psyllid but they were about ready to wing and the adults began to emerge in large numbers on August 20-21.
These proved to be Lit& mucu1ipenni.s Fitch. The accompanying photograph gives the enlarged abnormal growth of the galled-specimen in contrast to the normal rush, and makes a description unnecessary.
Did Fitch, nearly sixty years ago, pick a stem of rush with its monstrous tassel deserted by its colony and wonder "What did that?" while the little "spotted wings" were flitting about the marsh or resting perchance upon sweet-flag near by? THE COCCID2E OF NEW JERSEY GREENHOUSES.
BY HARRY B. WEISS,
New Brunswick, New Jersey.
While greenhouse coccids are not strictly a part of the New Jefsey fauna, yet many of them are more or less permanently established and are a constant source of annoyance and expense to various growers, Except for the "mealy bugs" and a few species of "soft" and "armored scales, " many of them are difficult to control and most of the insecticides recommended for greenhouse use are ineffective. Many of them will kill larvz but here their usefulness ends, Many have been recommended by hearsay, on the basis of too little investigation, or after experimentation of a meager kind which neglected to include atmospheric conditions and other factors of a more or less variable nature which have an important bearing on the success or failure of the material. As a result, the most effective work in combathg scale insects in greenhouses is done when the plants are overhauled and repotted. At this time badly infested plants are destroyed, infested leaves pulled off, and men and girls are placed at work scrubbing the leaves with tooth brushes, erasers and soft cloths or using pointed sticks to dislodge the scales in cracks and crevices. In other words,



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s o stems of msh, one with norma1 inflomm mntrssted with he Xed specimen d~owing the work of Lhia dipmmia,



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19161 Weiss-The Coccid~ of New Jersey Greenhouses 23 laborious hand methods are still the fashion in many greenhouses, not from choice but of necessity.
The following list consists of species which have been definitely found infesting various plants in New Jersey greenhouses. No
attempt has been made to give a complete list of food plants, and only those on which the insects were found are recorded. To Mr. E. R. Sasscer, I an1 indebted for various identifications during the past several years.
ICERYA Sign.
I. purchasi Mask. On acacia, orange, lemon. ORTHEZIA Bosc.
0. insignis Dougl.
On coleus, gardenia, verbena, citrus, chrysanthen~um~ tomato and other plants.
PSE~~DOCOCC~S Westw.
P. citri Risso,
On bouvardia, coleus, citrus, fuchsia, croton3 ferns, bay trees? tomato, palms, geranium and many others. P. longispinus Targ.
On ferns, citrus, palms, dracena, coleus and many others. P, pseudonip@ Cldl. On Kentia sp. and Cocos sp. CEROPLASTES Gray.
C, cirripediformis Comst. On citrus.
C, j?oridensis Comst. On citrus, oleander. ECCALY&~SATCS Ck11.
E. tessdlatus Sign. On palms.
Coccus Linn.
C, hesperidum Linn. On bay trees, oleander, crotons, begonias, palms? ficus, citrus, cyclamen, orchids, camellia and many others. C'. longulus Dougl,
On citrus, ficus, euphorbia, ferns and others. C. psmdohesperidum Ckll.
On orchids (Cattleya and Denclrobium spp.) SAISSETIA Depl.
S, hemisph@rica Targ. On palms, ferns, oleander, croion, orcliids, citrus camellia and many others.
S. ole@ Bern. On camellia, citrus.
DIASPIS Costa.
D. boisduvalii Sign. On palms, orchids.
D. bromeli~ Kern.
On pineapple, oleo fragrans, latania.
AULACASPIS ckll.
A. zumice Morg. On cjcas revoluta.
HEMICHIOXASPIS Ckll.
H. aspidistrcz Sign.
On ierns, aspidistra, pandanus, orchids.



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