The Insect Ecology of Red Pine Plantations in Central Ontario.: II. Life History and Control of Curculionidae

1964 ◽  
Vol 96 (11) ◽  
pp. 1408-1417 ◽  
Author(s):  
J. Lynton Martin
Keyword(s):  
Life History ◽  
Life Histories ◽  
Red Pine ◽  
Control Measures ◽  
Pine Plantations ◽  
Insect Ecology ◽  
And Control

AbstractThe life histories and habits of four curculionids, Hylobius congener, Pissodes affinis, P. approximatus, and Magdalis perforatus, are outlined; and their role in relation to red pine plantations and a serious red pine mortality problem in the Algoma district of Ontario is discussed. A key to the adults is provided and control measures are recommended.

The life-history and control of Hapatesus hirtus Candeze (Coleoptera: Elateridae) in Victoria

1991 ◽  
Vol 42 (5) ◽  
pp. 827 ◽  
Author(s):  
PA Horne ◽  
JA Horne
Keyword(s):  
Life History ◽  
Field Trials ◽  
Soil Samples ◽  
Control Measures ◽  
Potato Tubers ◽  
Larval Stages ◽  
Complete Development ◽  
History Of ◽  
And Control ◽  
Potato Crops

The incidence and life-history of potato wireworm, Hapatesus hirtus Candeze, in Victorian potato crops were studied, and insecticidal control measures assessed. Larval stages were present and active throughout the year. Ten larval instars were identified, probably requiring several years to complete development. Egg development occurred in October-November and the most likely timing of oviposition was December. The relative numbers of larval H. hirtus detected in soil samples, pre-planting baits and harvested tubers are presented. Baiting with halves of potatoes provided an efficient means of detecting areas likely to suffer wireworm damage. One formulation of chlorpyrifos ('Lorsban') was effective in reducing damage to, and larval numbers in, potatoes in field trials. The granular formulation of tefluthrin and the controlled release chlorpyrifos were not effective in protecting potato tubers.

scholarly journals Behavior of the Avian Parasite Philornis downsi (Diptera: Muscidae) in and Near Host Nests in the Galapagos Islands

2021 ◽  
Author(s):  
Courtney L. Pike ◽  
Ismael E. Ramirez ◽  
David J. Anchundia ◽  
Birgit Fessl ◽  
George E. Heimpel ◽  
...  
Keyword(s):  
Life History ◽  
Mating Behavior ◽  
Galapagos Islands ◽  
Control Measures ◽  
Life History Strategies ◽  
Control Methods ◽  
Galápagos Islands ◽  
Nest Cavity ◽  
Philornis Downsi ◽  
And Control

AbstractThe Avian Vampire Fly, Philornis downsi, has invaded the Galapagos Islands, where it causes high mortality of endemic and native landbird species, including most species of Darwin’s finches. Control methods are under development, but key information is missing about the reproductive biology of P. downsi and the behavior of flies in and near nests of their hosts. We used external and internal nest cameras to record the behavior of P. downsi adults within and outside nests of the Galapagos Flycatcher, Myiarchus magnirostris, throughout all stages of the nesting cycle. These recordings showed that P. downsi visited flycatcher nests throughout the day with higher fly activity during the nestling phase during vespertine hours. The observations also revealed that multiple P. downsi individuals can visit nests concurrently, and that there are some interactions among these flies within the nest. Fly visitation to nests occurred significantly more often while parent birds were away from the nest than in the nest, and this timing appears to be a strategy to avoid predation by parent birds. We report fly mating behavior outside the nest but not in the nest cavity. We discuss the relevance of these findings for the adaptive forces shaping P. downsi life history strategies as well as rearing and control measures.

THE INSECT ECOLOGY OF RED PINE PLANTATIONS IN CENTRAL ONTARIO: V. THE COCCINELLIDAE (COLEOPTERA)

1968 ◽  
Vol 100 (8) ◽  
pp. 835-846 ◽  
Author(s):  
W. C. Gagné ◽  
J. L. Martin
Keyword(s):  
Prey Capture ◽  
Red Pine ◽  
Pine Plantations ◽  
Ecological Groups ◽  
Population Fluctuations ◽  
Pine Needle ◽  
Mortality Factors ◽  
Old Field ◽  
Larval Stages ◽  
Insect Ecology

AbstractThirteen species of Coccinellidae were found to occur in adjacent red pine plantations of five different ages near Thessalon, Ont. These populations fell into two major ecological groups corresponding to the two plantation age classes. One group (the old-field species) inhabited young plantations up to 16 years old, and the other (the old-stand species) inhabited older stands. Each group was characterized by different dominant species, Coccinella transversoguttata Falder-man and Scymnus lacustris Lec. in the younger stands, and Mulsantina picta (Rand.) and Anatis mali Auct. in the older stands. Species diversity decreased as the stands aged.As the red pines increased in size, they became less favourable for coccinellids in general because prey density decreased. As a consequence, the predator’s search area per unit prey capture increased necessitating an increased searching capacity and mobility. Coccinellid population fluctuations were synchronized with those of the woolly pine needle aphid, Schizolachnus piniradiatae (Davidson), the major food source, due to compensative movements to and from the plantations of the adult coccinellids and the dependence of the larvae on the aphid. Starvation and cannibalism during the larval stages appeared to be the major mortality factors. Inclement weather and predation were of minor direct importance to coccinellid populations and parasitism was rare.All species, with the possible exception of S. lacustris, were univoltine.

A COMPARISON BETWEEN CONOPHTHORUS SHOOT-INFESTING BEETLES AND CONOPHTHORUS RESINOSAE (COLEOPTERA: SCOLYTIDAE): I. COMPARATIVE LIFE HISTORY STUDIES IN MICHIGAN

1970 ◽  
Vol 102 (8) ◽  
pp. 1008-1015 ◽  
Author(s):  
J. E. McPherson ◽  
L. F. Wilson ◽  
F. W. Stehr
Keyword(s):  
Life History ◽  
Life Histories ◽  
Shoot Tips ◽  
Red Pine ◽  
Seasonal Development ◽  
Pine Cone ◽  
History Of

AbstractLife histories of Conophthorus beetles attacking the shoot tips of jack, red, Scotch, and ponderosa pines were studied and compared with the life history of the red pine cone beetle, Conophthorus resinosae Hopkins. The tip-infesting beetles have not been morphologically separated from C. resinosae. The beetles attacking the shoots of jack, red, Scotch, and ponderosa pines have similar life histories which differ from that of C. resinosae. The latter is distinctly univoltine, while the tip-infesting beetles appear to be bivoltine. Also, dates of appearance and seasonal development differ.

Knowledge and Awareness of Dengue Fever

2018 ◽  
pp. 219-222
Author(s):  
Y. Arockia Suganthi ◽  
Chitra K. ◽  
J. Magelin Mary
Keyword(s):  
Dengue Fever ◽  
Prevention And Control ◽  
Control Measures ◽  
Infection Transmission ◽  
Standard Guideline ◽  
The World ◽  
Different Types ◽  
Prevention And Control Measures ◽  
Dengue Prevention ◽  
And Control

Dengue fever is a painful mosquito-borne infection caused by different types of virus in various localities of the world. There is no particular medicine or vaccine to treat person suffering from dengue fever. Dengue viruses are transmitted by the bite of female Aedes (Ae) mosquitoes. Dengue fever viruses are mainly transmitted by Aedes which can be active in tropical or subtropical climates. Aedes Aegypti is the key step to avoid infection transmission to save millions of people in all over the world. This paper provides a standard guideline in the planning of dengue prevention and control measures. At the same time gives the priorities including clinical management and hospitalized dengue patients have to address essentially.

The Mediterranean Action Plan: A Regional Approach to Pollution Control

1986 ◽  
Vol 18 (9) ◽  
pp. 197-205
Author(s):  
Lj Jeftié ◽  
L. J. Saliba
Keyword(s):  
Mediterranean Sea ◽  
Action Plan ◽  
Control Measures ◽  
Industrial Wastes ◽  
Pollution Monitoring ◽  
Environmental Preservation ◽  
Agricultural Pesticides ◽  
The Mediterranean ◽  
A Prospective Study ◽  
And Control

Increasing concern over the deterioration of the Mediterranean sea as a result of increasing pollution by untreated sewage and industrial wastes, agricultural pesticides and fertilizers and oil discharges, led to a series of meetings between 1970 and 1974, and finally to the UNEP-sponsored Mediterranean Action Plan, adopted by governments of the region in 1975 and ongoing since that time. The legal component of the Plan includes a framework Convention and four protocols; the environmental assessment component (the MED POL programme) consists of national pollution monitoring programmes, and research projects conducted by Mediterranean institutions; the environmental management component consists of the Blue Plan (a prospective study combining socio-economic development with environmental preservation) and the Priority Actions Programme (a series of sub-region sectoral projects in defined areas). The Plan has been financed by Mediterranean States since 1979, and is managed by UNEP with the cooperation of other competent UN Agencies. During the last ten years, activities undertaken have improved knowledge of the state of pollution of the Mediterranean sea, and facilitated joint regional action in the form of preventive and control measures.

An evaluation model of 2019-nCoV prevention effectiveness based on immigration data in China (Preprint)

2020 ◽  
Author(s):  
Qiangsheng Huang
Keyword(s):  
Prevention And Control ◽  
Time Window ◽  
Evaluation Model ◽  
Control Measures ◽  
Related Data ◽  
The Face ◽  
Prevention And Control Measures ◽  
And Control ◽  
Best Fit

BACKGROUND As of the end of February 2020, 2019-nCoV is currently well controlled in China. However, the virus is now spreading globally. OBJECTIVE This study aimed to evaluate the effectiveness of outbreak prevention and control measures in a region. METHODS A model is built for find the best fit for two sets of data (the number of daily new diagnosed, and the risk value of incoming immigration population). The parameters (offset and time window) in the model can be used as the evaluation of effectiveness of outbreak prevention and control. RESULTS Through study, it is found that the parameter offset and time window in the model can accurately reflect the prevention effectiveness. Some related data and public news confirm this result. And this method has advantages over the method using R0 in two aspects. CONCLUSIONS If the epidemic situation is well controlled, the virus is not terrible. Now the daily new diagnosed patients in most regions of China is quickly reduced to zero or close to zero. Chinese can do a good job in the face of huge epidemic pressure. Therefore, if other countries can do well in prevention and control, the epidemic in those places can also pass quickly.

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