Emergence of Parasites Associated with the Cabbage Aphid During a Chemical-Control Program

1968 ◽  
Vol 61 (6) ◽  
pp. 1762-1763 ◽  
Author(s):  
George L. Godfrey ◽  
Richard B. Root
Keyword(s):  
Chemical Control ◽  
Control Program ◽  
Cabbage Aphid

scholarly journals Bioefficacy of entomopathogenic mycoformulations and effect of adjuvants against nymphs of cabbage aphid, Brevicornye brassicae (Linnaeus)

2021 ◽  
Vol 13 (2) ◽  
pp. 530-536
Author(s):  
Karuna Thakur ◽  
Neelam Joshi ◽  
Sudhendu Sharma
Keyword(s):  
Pest Management ◽  
Chemical Control ◽  
Insect Pests ◽  
Management Program ◽  
Environmentally Benign ◽  
Laboratory Studies ◽  
Percent Reduction ◽  
Cabbage Aphid ◽  
Percent Increase ◽  
Cent Mortality

Cabbage aphid, Brevicornye brassicae (Linnaeus) is one of the major insect pests of cabbage. Chemical control is mostly used to manage this pest. The present investigation was conducted to evaluate an environmentally benign approach for the pest management through different entomopathogenic mycoformulations against nymphs of B. brassicae to identify effective mycoformulation. The effect of mycoformulations supplemented with different adjuvants against nymphs of B. Brassicae was also evaluated under laboratory conditions. The bioassay studies of fungal bioformulation against nymphs of B. brassicae recorded maximum cumulative per cent mortality (53.33%) in talc formulation of L. lecanii MTCC 956 and commercial L. Lecanii formulation @12g L-1 and these were at par with each other. Maximum percent reduction of nymphal population over control 54.66 and 51.33 per cent was recorded @12 g L-1in talc formulation of L. lecanii (MTCC 956) and commercial L. Lecanii formulation ten days after treatment respectively. Laboratory studies undertaken to evaluate talc formulation of L. lecanii MTCC 956 lecanii with and without adjuvants against the nymphs of B. brassicae recorded maximum percent increase in mortality over control (7.89%) in L. lecanii formulation + tween80@1%. Results of this study signified that L. lecanii formulation, when supplemented with adjuvants enhanced the growth of L. lecanii and increased mortality of nymphs of B. brassicae and could be used as a part of the integrated pest management program.

scholarly journals Spruce Budmoth — A Case History Issues and Constraints

1985 ◽  
Vol 61 (3) ◽  
pp. 252-255 ◽  
Author(s):  
M. M. Neilson
Keyword(s):  
New Brunswick ◽  
Environmental Assessment ◽  
Case History ◽  
Chemical Control ◽  
Control Program ◽  
White Spruce

An approach, involving all of the agencies that might be involved in a spray permit approval, to the design of a chemical control program for a zeiraphera sp. infestation in extensive white spruce plantations in New Brunswick is described. The issues and constraints encountered in the exercise and that would probably be common to any attempt at implementing chemical control of a pest in plantations are highlighted. Steps that must be taken to resolve some of these difficulties are discussed. Adaptive Environmental Assessment and Management is suggested as an approach that might resolve issues and contraints.

scholarly journals GAMBARAN PARTISIPASI MASYARAKAT DALAM PROGRAM PENGENDALIAN VEKTOR DBD DI WILAYAH KERJA PUSKESMAS AIR DINGIN

2018 ◽  
Vol 3 (2) ◽  
pp. 48
Author(s):  
Novia Wirna Putri ◽  
Sevilla Ukhtil Huvaid
Keyword(s):  
Biological Control ◽  
Vector Control ◽  
Health Center ◽  
Chemical Control ◽  
Cold Water ◽  
Control Program ◽  
Environmental Modification ◽  
Environmental Manipulation ◽  
Vector Control Program ◽  
The City

Dengue Hemorrhagic Fever (DHF) is one of the important public health problems in Indonesia. Cases of dengue fever in the city of Padang in 2015 experienced a significant increase in the amount of 1,126 cases (IR = 124.8 per 100,000 population) with a total death of 8 people (CFR = 0.7%). The Cold Water Health Center is one of the health centers in the city of Padang with a work area that has a significant increase in dengue cases in 2015 with an IR of 361.5 per 100,000 population. The research objective was to analyze community participation in the DHF vector control program in the working area of the Cold Water Health Center in Padang City in 2018. This type of research was descriptive research. The sample is 99 people taken by proportional random sampling technique. Data analysis includes univariate analysis of community participation in vector control, namely environmental modification, environmental manipulation, physical control, chemical control, biological control and the existence of larvae. The results showed that 52.5% of respondents were larvae positive, 32.3% of respondents belonged to the bad category of environmental modification, 58.6% of respondents belong to the bad category of environmental manipulation, amounting to 30.3% of respondents classified in the bad category is physical control, 78.8% of respondents belong to the bad category of chemical control, and 35.4% of respondents belong to the bad category of biological control in the DHF vector control program in the working area of the Cold Water Health Center. It is recommended to the Air Dingin Health Center to be able to socialize to the public regarding DHF vector control programs both in aspects of environmental modification, environmental manipulation, physical, chemical and biological control.Keyword: DBD, vector, environment

Quality and yield of the Cucumis sativus var. Jawell crop under two pest control systems in the Sonoran desert, Mexico

2020 ◽  
Vol 13 (10) ◽  
Author(s):  
EDGAR OMAR RUEDA PUENTE ◽  
FRANCISCO ELEAZAR Martínez-Ruiz ◽  
GABRIELA Andrade-Bustamante ◽  
Guadiana-Alvarado Guadiana-Alvarado ◽  
Cisneros-Almazan R Cisneros-Almazan R ◽  
...  
Keyword(s):  
Biological Control ◽  
Cucumis Sativus ◽  
Pest Control ◽  
Chemical Control ◽  
Control Method ◽  
Control Program ◽  
High Tech ◽  
Total Production ◽  
Biological Pest Control ◽  
Aphid Control

Objective: To compare a commercial pest control program vs a biological pest control program in cucumber (Cucumis sativus var. Jawell) cultivation, evaluating quality and production standards.Design/methodology/approach: The study was carried out in high-tech glass greenhouses, under a cooling system with damp walls and extractors, heating by irradiation, and automated irrigation. Two treatments were evaluated: biologicalpest control in area A and a commercial control program in area B, both in Persian cucumber (Cucumis sativus) of the Jawell variety; each area of 160 m2, separately, and 41,600 plants for each area. For biological control, the mite (Amblyseiusswirskii) was released for the control of thrips; the wasp (Aphidius colemani) was released for aphid control; the mites (Phytoseiulus persimilis) and (Amblyseius californicus) for red spider control and application of the entomopathogenicnematode (Steinernema fetiae). The chemical control was in accordance with COFEPRIS (2019). The variables werefruit quality total production and incidence of pests in a completely randomized experimental design, and the t-student statistical test and Mann-Whitney test were done for the variables weight quality and loss (P?0.05). A correlation was made between the incidence of thrips (Thrips tabaci) and the incidence of biological control.Results: The biological control method was just as efficient as the chemical control method, in variables such as fruit weight, number of boxes obtained of quality cucumber, and incidence of pests and their biological control.Study limitations/implications: It is important to perform more studies under field conditions where biotic and abiotic factors are different and in other regions, in addition to testing other registered biological products.Findings/conclusions: Biological and chemical control are complementary, an integrated control would help to slowly adapt a company for a subsequent application of biological control, easing regularization and certification procedures thatinvolve the use of chemicals. A more continuous release of A. swirskii is proposed and distributed during the cultivation weeks.

scholarly journals Ecological aspects of the vectorial control of Chagas' disease in Brazil

1994 ◽  
Vol 10 (suppl 2) ◽  
pp. S352-S358 ◽  
Author(s):  
João Carlos P. Dias
Keyword(s):  
Disease Control ◽  
Chagas Disease ◽  
Chemical Control ◽  
Control Program ◽  
Epidemiological Surveillance ◽  
Surveillance Systems ◽  
Control Programs ◽  
Ecological Aspects ◽  
Ecological Problems ◽  
Political Priority

The feasibility and most important ecological aspects of vectorial Chagas' disease control are discussed. The spread and maintenance of this disease involve multiple ecological and sociopolitical factors that must be taken into account when control programs are planned, executed and evaluated. In spite of its complexity, Chagas disease can be controlled using methods that target specific mechanisms of transmission, the most important being vectorial and transfusional. Major ecological problems in Chagas' disease control do not exist, even in the case of the chemical control of triatomine vectors. The main challenges for the Brazilian Control Program at this moment are: its maintenance as a political priority; the threat of peridomestic vectors; and the consolidation of permanent horizontal and participative epidemiological surveillance systems against the vector.

CHEMICAL CONTROL OF RODENTS IN ANIMAL FARMS (IZZAB) IN QATAR STATE

2018 ◽  
Vol 24 (1) ◽  
Author(s):  
ELSIDDIG M. NOURELDIN
Keyword(s):  
Pest Management ◽  
Rattus Norvegicus ◽  
Chemical Control ◽  
Control Program ◽  
Control Programme ◽  
Baseline Survey ◽  
Percentage Reduction ◽  
Norway Rat ◽  
Animal Farms ◽  
Special Strategy

The aim of this study is to develop a control program for rodents in animal farms (Izzab) in Qatar. The preliminary baseline survey for rodent-infested Izzab revealed that 1506 Izzab out of 1814 was infested (83%). The overall percentage reduction in the rodent-infested Izzab after 6 months of the control programme was 77%. Towards the end of the control programme, a special strategy was adopted to control rodents in 327 Izzab in which rodents’ activity was still observed. A 75% reduction was attained in these Izzab at the end of the control programme. The overall reduction in the infested Izzab was 94% at the end of the control programme. The most predominant rodent species found in Izzab is the Norway rat Rattus norvegicus, making burrows inside and outside Izzab buildings. Fewer incidences were noted for the House mouse Mus musculus associated with Izzab buildings. It is recommended that bait consumption and rodents’ activity are to be monitored regularly so as to locate the farms that are still having problems and to detect any new foci or outbreaks. Implementing of Integrated Pest Management (IPM) technique is also highly recommended.

Changes in Biological Characteristics of the Sea Lamprey (Petromyzon marinus) as Related to Lamprey Abundance, Prey Abundance, and Sea Lamprey Control

1980 ◽  
Vol 37 (11) ◽  
pp. 1861-1871 ◽  
Author(s):  
John W. Heinrich ◽  
Jerry G. Weise ◽  
Bernard R. Smith
Keyword(s):  
Great Lakes ◽  
Chemical Control ◽  
Lake Trout ◽  
Lake Superior ◽  
Petromyzon Marinus ◽  
Control Program ◽  
Sea Lamprey ◽  
Biological Characteristics ◽  
Prey Abundance ◽  
Sea Lampreys

Biological characteristics of adult sea lampreys, Petromyzon marinus, in the Great Lakes changed in response to lamprey and prey abundance and the chemical control program. Sea lampreys collected as early as 1947, through 1978, from southern Lake Superior, northwestern Lake Michigan, the Ocqueoc River and Canadian shore of Lake Huron, and the Humber River of Lake Ontario were analyzed. Generally, abundance of sea lampreys peaked in each lake before the chemical control program began. The annual mean lengths and weights were relatively low when lampreys were abundant and increased as the numbers were reduced by the control efforts. As an indication of the change in sea lamprey weight per unit change in length, annual log10 weight on log10 length equations were solved at the arbitrary length of 410 mm. The values were plotted against years for each lake and interpreted with respect to chemical treatment periods. All slopes were negative before the control period and positive thereafter. Sea lamprey lengths and weights were low when fish stocks in the Great Lakes were near depletion. As salmonids again became abundant through stocking, lampreys grew larger. In Lake Superior, where detailed records on lake trout abundance have been available since 1959, a significant relation exists between the changes in the sea lamprey estimated weight values at 410 mm and in lake trout abundance (P < 0.01). Male sea lampreys were the dominant sex when populations of the parasite were high. A shift to a preponderance of females occurred as lamprey abundance declined.Key words: Petromyzon marinus, Salvelinus namaycush, abundance, sex ratio, weight–length relationship, chemical control

Automated mineral analysis in TASK8

1990 ◽  
Vol 48 (2) ◽  
pp. 212-213
Author(s):  
William F. Chambers ◽  
Arthur A. Chodos ◽  
Roland C. Hagan
Keyword(s):  
National Laboratory ◽  
Control Program ◽  
Mineral Analysis ◽  
Alamos National Laboratory ◽  
Mineral Phase ◽  
Los Alamos National Laboratory ◽  
California Institute Of Technology ◽  
Mineral Phases ◽  
Letter Code ◽  
Institute Of Technology

TASK8 was designed as an electron microprobe control program with maximum flexibility and versatility, lending itself to a wide variety of applications. While using TASKS in the microprobe laboratory of the Los Alamos National Laboratory, we decided to incorporate the capability of using subroutines which perform specific end-member calculations for nearly any type of mineral phase that might be analyzed in the laboratory. This procedure minimizes the need for post-processing of the data to perform such calculations as element ratios or end-member or formula proportions. It also allows real time assessment of each data point.The use of unique “mineral codes” to specify the list of elements to be measured and the type of calculation to perform on the results was first used in the microprobe laboratory at the California Institute of Technology to optimize the analysis of mineral phases. This approach was used to create a series of subroutines in TASK8 which are called by a three letter code.

A computer-control program for TEM in situ fatigue experiments

1989 ◽  
Vol 47 ◽  
pp. 620-621
Author(s):  
Kenneth S. Vecchio ◽  
John A. Hunt
Keyword(s):  
Slow Crack Growth ◽  
Computer Control ◽  
Control Program ◽  
Video Tape ◽  
Computer Control System ◽  
Transmission Electron ◽  
In Situ Experiments ◽  
Tremendous Amount ◽  
And Control

In-situ experiments conducted within a transmission electron microscope provide the operator a unique opportunity to directly observe microstructural phenomena, such as phase transformations and dislocation-precipitate interactions, “as they happen”. However, in-situ experiments usually require a tremendous amount of experimental preparation beforehand, as well as, during the actual experiment. In most cases the researcher must operate and control several pieces of equipment simultaneously. For example, in in-situ deformation experiments, the researcher may have to not only operate the TEM, but also control the straining holder and possibly some recording system such as a video tape machine. When it comes to in-situ fatigue deformation, the experiments became even more complicated with having to control numerous loading cycles while following the slow crack growth. In this paper we will describe a new method for conducting in-situ fatigue experiments using a camputer-controlled tensile straining holder.The tensile straining holder used with computer-control system was manufactured by Philips for the Philips 300 series microscopes. It was necessary to modify the specimen stage area of this holder to work in the Philips 400 series microscopes because the distance between the optic axis and holder airlock is different than in the Philips 300 series microscopes. However, the program and interfacing can easily be modified to work with any goniometer type straining holder which uses a penrmanent magnet motor.

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