scholarly journals The Life History and Early Stages of Macropsis Virescens Var. Gramina (Fabr.),1 a Poplar Leaf Hopper in new Jersey (Hom)

1919 ◽  
Vol 12 (6) ◽  
pp. 437-440
Author(s):  
Harry B. Weiss ◽  
Edgar L. Dickerson
1892 ◽  
Vol 24 (2) ◽  
pp. 35-36
Author(s):  
Herbert Osborn ◽  
H. A. Gossard

This leaf-hopper is considered a clover pest, but is also known to feed on beets, rutabagas, cabbages and blue grass. It is active even in midwinter on sunshiny days. The eggs are thrust beneath the epidermis of the food-plant, and the first brood of larvæ appears from the middle of May until July 1st. The earliest individuals of the brood are nearly mature by the first of July and are supposed to begin egg-laying a little later. Larvæ can be found in all stages of growth from this time until the advent of winter, but most of the individuals are believed to be included in two broods.


1928 ◽  
Vol 55 (3) ◽  
pp. 555-608 ◽  
Author(s):  
Malcolm Wilson ◽  
Elsie J. Cadman

During the last eighty years the Mycetozoa have attracted the attention of numerous investigators, largely on account of the striking differences in structure which are exhibited at successive stages in the life-history. The fact that during the early stages of their development they consist of naked masses of protoplasm and closely resemble certain lowly animal forms, while later on in the sporangial condition they assume plant-like characters, has given rise to numerous discussions as to their position in the classification of living organisms.


1918 ◽  
Vol 11 (6) ◽  
pp. 467-471 ◽  
Author(s):  
Harry B. Weiss ◽  
Alan S. Nicolay
Keyword(s):  

2019 ◽  
Vol 26 (4) ◽  
pp. 817
Author(s):  
Giselle Schreiber ◽  
Paola C. López-Duarte ◽  
Kenneth W. Able
Keyword(s):  

1993 ◽  
Vol 125 (2) ◽  
pp. 399-401 ◽  
Author(s):  
S. Augustin ◽  
J. Lévieux

The need to exploit new sources of energy has recently led France to encourage several research programs toward the cultivation of crops for biomass production to extract alcohol, glucides, and chips for burning. To produce large quantities of biomass rapidly, several species of Populus have been selectively tested in short rotation coppices on about 400 ha in several parts of the country.Among the practical consequences of this policy, one appears to be harmful, namely the spatial extension of several pests, mainly leaf eaters or polyphagous insects. These insects previously were located in poplar nurseries. Among the leaf eaters, larvae and adults of the poplar leaf beetles Chrysomela (= Melasoma) populi L. and Chrysomela tremulae F. feed on many poplar species in central France (e.g. Populus tremula L., Populus trichocarpa Torrey and Gray, Populus deltoides Bartram, Populus lasiocarpa Oliver).


1964 ◽  
Vol 96 (3) ◽  
pp. 538-540
Author(s):  
John Adams Comstock
Keyword(s):  

AbstractNotes and illustrations of the life history of the pterophorid moth, Oidaematophorus phaceliae McD., are given, and former errors of determination are corrected.


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