Crawler phenology and generation development of the Florida wax scale,ceroplastes floridensis, on citrus planted in two soil types

1995 ◽  
Vol 23 (4) ◽  
pp. 307-313 ◽  
Author(s):  
Aharon Yardeni ◽  
David Rosen
Keyword(s):  
Soil Types ◽  
Ceroplastes Floridensis ◽  
Florida Wax Scale

scholarly journals Susceptibility of Ilex Species, Hybrids and Cultivars to Florida Wax Scale (Ceroplastes floridensis Comstock)

2001 ◽  
Vol 19 (1) ◽  
pp. 32-36 ◽  
Author(s):  
Greg Hodges ◽  
John M. Ruter ◽  
S. Kristine Braman
Keyword(s):  
Scale Insects ◽  
Two Generations ◽  
Coccus Hesperidum ◽  
Parental Lines ◽  
Ceroplastes Ceriferus ◽  
Species Hybrids ◽  
Very High ◽  
Ceroplastes Floridensis ◽  
Florida Wax Scale ◽  
Ceroplastes Floridensis Comstock

Abstract Susceptibility of 231 holly species, hybrids and cultivars to Florida wax scale (Ceroplastes floridensis Comstock) were evaluated on field grown plants in Tifton, Georgia. Florida wax scale have two generations/year in this region. Population ratings on different parental lines were grouped as either low populations (<10 scales/60 second count), moderate populations (11–20 scales/60 second count), high populations (21–40 scales/60 second count) and very high populations (>40 scales/60 second count). Taxa from the study rated as being least preferred (low populations) by the Florida wax scale included those with I. crenata, I. buergeri, I. glabra, I. myrtifolia, I. verticillata and I. vomitoria within parental lines. Those prone to heavy infestations were I. aquifolium, I. × attenuata, I. cassine, I. ciliospinosa, I. cornuta, I. × koehneana, I. latifolia, I. × meserveae, I. opaca, I. purpurea, I. rugosa and I. serrata. Other scale insects noted on the hollies included: Barnacle wax scale (Ceroplastes cirripediformis Comstock), Indian wax scale (Ceroplastes ceriferus (Fabricius)), European fruit lecanium (Parthenolecanium corni Bouche), Brown soft scale (Coccus hesperidum Linneaus), Tea scale (Fiornia theae Green), Latania scale (Hemiberlesia lataniae (Sign.)), and a pit scale (Asterolecanium puteanum Russell).

Mass rearing of the florida wax scale,Ceroplastes floridensis, for production of natural enemies

1987 ◽  
Vol 15 (4) ◽  
pp. 277-287 ◽  
Author(s):  
Yael Argov ◽  
Haggai Podoler ◽  
Oded Bar-Shalom ◽  
David Rosen
Keyword(s):  
Natural Enemies ◽  
Mass Rearing ◽  
Ceroplastes Floridensis ◽  
Florida Wax Scale

Abrasive wear of polymer/steel gear drives

2008 ◽  
Vol 4 (1) ◽  
pp. 1-26
Author(s):  
Gábor Kalácska
Keyword(s):  
Wear Resistance ◽  
Abrasive Wear ◽  
Material Selection ◽  
Solid Particles ◽  
Soil Types ◽  
General View ◽  
Modern Engineering ◽  
Clean Environment ◽  
Engineering Polymers ◽  
Plastic Gears

Research was performed on the friction, wear and efficiency of plastic gears made of modern engineering polymers and their composites both in a clean environment (adhesive sliding surfaces) and in an environment contaminated with solid particles and dust (abrasive), with no lubrication at all. The purpose is to give a general view about the results of abrasive wear tests including seven soil types as abrasive media. At the first stage of the research silicious sand was applied between the meshing gears and the wear of plastic and steel gears was evaluated and analyzed from the point of different material properties (elongation at break, hardness, yield stress, modulus of elasticity) and its combinations. The different correlations between the experienced wear and material features are also introduced. At the second stage of the project the abrasive sand was replaced with different physical soil types. The abrasive wear of gears is plotted in the function of soil types. The results highlight on the considerable role of physical soil types on abrasive wear resistance and the conclusions contain the detailed wear resistance. The results offer a new tribology database for the operation and maintenance of agricultural machines with the opportunity of a better material selection according to the dominant soil type. This can finally result longer lifetime and higher reliability of wearing plastic/steel parts.

Effects of heavy metals on soil invertase enzyme activity in different soil types

2010 ◽  
Vol 18 (2) ◽  
pp. 175-180
Author(s):  
Rajesh K. Verma ◽  
Dharam Veer Yadav ◽  
Chandra Pal Singh ◽  
Archna Suman ◽  
Asha Gaur
Keyword(s):  
Heavy Metals ◽  
Enzyme Activity ◽  
Soil Types

Status of Food Security in Banten Province, Indonesia

2019 ◽  
Author(s):  
Weksi Budiaji
Keyword(s):  
Population Dynamics ◽  
Food Security ◽  
Arable Land ◽  
Secondary Data ◽  
Disaster Risk ◽  
Soil Types ◽  
Indicator Variables ◽  
Cereal Production ◽  
The Status ◽  
Vast Area

This paper discusses the status of food security in Banten Province, Indonesia based on regional and city characteristics. Secondary data is used and is analyzed descriptively covering population dynamics, the population living in poverty, cereal production, disaster risk and soil types. Tangerang Region is found to have the largest population with the greatest number of people living in poverty among the regions and cities in Banten Province. Cereal production is dominated by the regions rather than the cities due to their vast area. Regarding arable land, flooding is the most threatening disaster in the major rice producing areas. In order to identify the distributions of regions and cities regarding food security, three indicator variables of food security dimensions are plotted, namely, cereal normative consumption, proportion of the population living in poverty, and proportion of malnourished babies. The three regions of Pandeglang Region, Lebak Region and Serang Region are grouped together in a less secure group.

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