Observations on the Effectiveness and Biology of the European Predator Laricobius erichsonii Rosen. (Coleoptera: Derodontidae) in Oregon and Washington

1962 ◽  
Vol 94 (5) ◽  
pp. 461-472 ◽  
Author(s):  
P. E. Buffama
Keyword(s):  
Department Of Agriculture ◽  
Predator Species ◽  
Woolly Aphid ◽  
Insect Predators ◽  
Canadian Department

In 1957, a program of introducing insect predators for control of the balsam woolly aphid, Chermes (= Adelges) piceae Ratz., was begun in Oregon and Washington. This program was made possible through the generous cooperation of the Canadian Department of Agriculture, which provided many of the predators. Eighteen predator species from Europe, Asia, and Australia were liberated from 1957 through 1960. Four of the species are known to have survived one or more winters and show promise of becoming permanently established.

NOTES ON THE ASILID GENERA BOMBOMIMA AND LAPHRIA WITH DESCRIPTIONS OF THREE NEW SPECIES AND TWO NEW VARIETIES (DIPTERA)

1929 ◽  
Vol 61 (7) ◽  
pp. 157-161
Author(s):  
S. W. Bromley
Keyword(s):  
New Species ◽  
Undescribed Species ◽  
Department Of Agriculture ◽  
New Varieties ◽  
Three New Species ◽  
Species Descriptions ◽  
Canadian Department

The collection from which this study was made was obtained through the courtesy of the Entomological Branch, Canadian Department of Agriculture, and was of particular interest in that it not only contiained excellent series of many of the described forms but also several undescribed species. Descriptions of the latter are submitted in the present paper together with notes on some of the others.

THE INFLUENCE OF THREE INSECTICIDES ON PREDATION OF THE PEAR PSYLLA, PSYLLA PYRICOLA

1967 ◽  
Vol 99 (12) ◽  
pp. 1292-1297 ◽  
Author(s):  
R. D. McMullen ◽  
C. Jong
Keyword(s):  
Predation Pressure ◽  
Population Densities ◽  
Predator Species ◽  
Chrysopa Carnea ◽  
Azinphos Methyl ◽  
Pear Psylla ◽  
Pear Orchard ◽  
Insect Predators ◽  
Campylomma Verbasci ◽  
Competition For Food

AbstractThe effects of sprays of DDT, azinphos-methyl, and Ryania applied to a pear orchard on population densities of insect predators of Psylla pyricola Förster were assessed. The P. pyricola in the orchard were naturally tolerant to DDT and Ryania and highly resistant to azinphos-methyl. DDT eliminated or severely reduced numbers of Deraeocoris brevis piceatus Knight, D. fasciolus Knight, Diaphnocoris provancheri (Burque), and Campylomma verbasci (Meyer). Chrysopa carnea Stephens and C. oculata Say were moderately reduced. Anthocoris antevolens (White) and A. melanocerus Reuter were highly tolerant to DDT. Azinphos-methyl severely reduced numbers of A. antevolens, A. melanocerus, C. verbasci, and D. provancheri. C. carnea and C. oculata were moderately reduced. D. brevis piceatus and D. fasciolus were tolerant to azinphos-methyl. Ryania severely reduced numbers of A. antevolens, A. melanocerus, and C. verbasci; moderately reduced D. provancheri; and did not affect D. brevis piceatus, D. fasciolus, C. carnea, or C. oculata.In the DDT-treated plots the relative densities of Anthocoris spp. approximately doubled compared with the untreated plots. This was probably due to removal of competition for food by other predator species. Large increases ill the relative densities of Deraeocoris spp. were also observed in the Ryania treatments, probably for similar reasons. Significant increases in the P. pyricola populations in response to removal of predation pressure by the insecticide treatments occurred in the DDT and azinphos-methyl plots bur not in the Ryania plots.

NEW GENERA OF NORTH AMERICAN MUSCOID DIPTERA

1943 ◽  
Vol 75 (9) ◽  
pp. 163-169 ◽  
Author(s):  
H. J. Reinhard
Keyword(s):  
North American ◽  
New Genera ◽  
Department Of Agriculture ◽  
Additional Material ◽  
Canadian Department

The following descriptions of five new genera and species of Tachinidae are based upon material received from several sources as indicated below. Most of the species have been standing in my collection for a number of years pending the accumulation of longer series. My thanks are due A. R. Brooks for the loan of some additional material recently discovered in the extensive tachinid collections in the Canadian Department of Agriculture. The type or paratype specimens, of the two species represented by this material, are returned for deposit in the Canadian Collection, as detailed under the descriptions.

Resource use of insect seed predators during general flowering and seeding events in a Bornean dipterocarp rain forest

2003 ◽  
Vol 93 (5) ◽  
pp. 455-466 ◽  
Author(s):  
M. Nakagawa ◽  
T. Itioka ◽  
K. Momose ◽  
T. Yumoto ◽  
F. Komai ◽  
...  
Keyword(s):  
Tropical Forests ◽  
Resource Use ◽  
Predator Species ◽  
Seed Predators ◽  
Dipterocarp Forest ◽  
Tropical Lowland ◽  
General Flowering ◽  
Lowland Dipterocarp Forest ◽  
Insect Predators ◽  
Taxonomic Groups

AbstractInsect seed predators of 24 dipterocarp species (including the genera of Dipterocarpus, Dryobalanops and Shorea) and five species belonging to the Moraceae, Myrtaceae, Celastraceae and Sapotaceae were investigated. In a tropical lowland dipterocarp forest in Sarawak, Malaysia, these trees produced seeds irregularly but intensely during general flowering and seeding events in 1996 and/or 1998. Dipterocarp seeds were preyed on by 51 insect species (11 families), which were roughly classified into three taxonomic groups: smaller moths (Tortricidae, Pyralidae, Crambidae, Immidae, Sesiidae and Cosmopterigidae), scolytids (Scolytidae) and weevils (Curculionidae, Apionidae, Anthribidae, and Attelabidae). Although the host-specificity of invertebrate seed predators has been assumed to be high in tropical forests, it was found that the diet ranges of some insect predators were relatively wide and overlapped one another. Most seed predators that were collected in both study years changed their diets between general flowering and seeding events. The results of cluster analyses, based on the number of adults of each predator species that emerged from 100 seeds of each tree species, suggested that the dominant species was not consistent, alternating between the two years.

Distributional Records of North American Corixidae (Hemiptera: Heteroptera)

1955 ◽  
Vol 87 (11) ◽  
pp. 474-481 ◽  
Author(s):  
I. Lansbury
Keyword(s):  
North American ◽  
Western Hemisphere ◽  
Large Collection ◽  
Department Of Agriculture ◽  
Canadian Department

During 1954, I had the opportunity of examining a large collection, circa 3,500 of unidentified Corixidae which had been accumulated in the Canadian Department of Agriculture over a period of years. These notes consist of a list of species identified, with observations where pertinent when these records are new state or country records compared with the full lists of localities given in H. B. Hungerford's ‘The Corixidae of the Western Hemisphere’ 1948, Univ. Kansas Sci. Bull. Vol. XXXII, pp. 1-827.

A Survey for Grasshopper Parasites in Temperate South America

1951 ◽  
Vol 83 (9) ◽  
pp. 213-230 ◽  
Author(s):  
D. C. Lloyd
Keyword(s):  
North America ◽  
South America ◽  
Exotic Species ◽  
Temperate Zone ◽  
Natural Control ◽  
Department Of Agriculture ◽  
La Plata ◽  
The World ◽  
Cereal Production ◽  
Canadian Department

In 1937-38 the Argentine Department of Agriculture initiated an exchange of grasshopper parasite material with the Canadian Department of Agriculture which was engaged in a study of the natural control of grasshoppers in various provinces of Canada. By 1942 it was considered desirable to introduce exotic species of parasites into Canada on as wide a scale as possible, and the temperate regions of South America were selected as being the most promising for a survey. The parts of the temperate zone of South America to which preferential attention was to be given included the countries of Uruguay, Argentina, and Chile. The well known grasslands of the Rio de la Plata area have been partially transformed into one of the world centres for cereal production and as in other parts of the world increased grasshopper populations constitute a major problem in the agriculture of the region. Here species of the genus Dichroplus are frequently pests in the way in which members of the closely related Melanoplus are in North America.

The development of reindeer husbandry in Canada

Polar Record ◽  
1968 ◽  
Vol 14 (88) ◽  
pp. 15-19 ◽  
Author(s):  
Erhard Treude
Keyword(s):  
Infant Mortality ◽  
Financial Support ◽  
Dairy Industry ◽  
Department Of Agriculture ◽  
Reindeer Husbandry ◽  
Sheldon Jackson ◽  
Canadian Department

The first reindeer were introduced into Canada for humanitarian rather than commercial reasons. Encouraged by the success achieved in Alaska, where 1280 reindeer imported by Dr Sheldon Jackson from Siberia between 1892 and 1902 had increased in a few years to several times that number, the missionary physician of Labrador, Wilfred Grenfell, hoped to develop a reindeer meat-and-dairy industry in his region, where tuberculosis was common and infant mortality high. In 1908, with financial support from the Boston Transcript and the Canadian Department of Agriculture, he bought 300 reindeer in Norway and brought them to St Anthony, Newfoundland. Under the supervision of four Lapp herders, the animals quickly adjusted to their new environment

Releases in North America and Reviews of Bionomics in Europe of Insect Predators of the Balsam Woolly Aphid, Adelges piceae (Ratz.) (Homoptera: Adelgidae)

1957 ◽  
Vol 89 (9) ◽  
pp. 410-420 ◽  
Author(s):  
B. C. Smith ◽  
H. C. Coppel
Keyword(s):  
United States ◽  
North America ◽  
Abies Balsamea ◽  
Abies Alba ◽  
Balsam Fir ◽  
Northeastern United States ◽  
Eastern Canada ◽  
Woolly Aphid ◽  
Insect Predators ◽  
Adelges Piceae

The balsam woolly aphid, Adelges piceae (Ratz.), causes serious damage to balsam fir, Abies balsamea (L.) Mill., in Eastern Canada. It was introduced from Europe before 1900 (Balch, 1952) and has also become established in the northeastern United States. In continental Europe A. piceae is common on Abies alba Mill. but is not so serious a pest as in Canada. It has an extensive complex of insect predators in both Canada (Balch, 1934) and Europe (Delucchi, 1954). Balch (1934, 1952) found those in Canada inadequate as control agents. Some of the predators of Pineus pini Koch and Pineus strobi (Htg.) studied by Wilson (1938) in England, and recommended for introduction to new areas, were imported to Canada and released against A. piceae. Predators were first introdnced from Ensland in 1933 and later from continental Europe beginning in 1951.

ANTHIDIINAE COLLECTED MOSTLY IN CANADA (HYMENOP)

1928 ◽  
Vol 60 (9) ◽  
pp. 212-217
Author(s):  
Herbert F. Schwarz
Keyword(s):  
Department Of Agriculture ◽  
Canadian Department

Through the courtesy of Dr. J. McDunnough I was recently privileged to examine the collection of Anthidiine bees in the Entomological Branch of the Canadian Department of Agriculture, including both identified and unidentified nraterial. The list of species determined or confirmed follows, with comments.

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