Integrated control approach of Pandemis heparana Den. et Schiff, and Adoxophyes orana F. v. R. (Lep., Tortricidae) in apple orchard

2009 ◽  
Vol 95 (1-5) ◽  
pp. 57-63
Author(s):  
M. Injac ◽  
K. Dulić
Keyword(s):  
Integrated Control ◽  
Apple Orchard ◽  
Adoxophyes Orana ◽  
Control Approach ◽  
Pandemis Heparana

scholarly journals Integrated Control of Apple Scab and Powdery Mildew in an Organic Apple Orchard by Combining Potassium Carbonates with Wettable Sulfur, Pruning, and Cultivar Susceptibility

Plant Disease ◽  
2016 ◽  
Vol 100 (9) ◽  
pp. 1894-1905 ◽  
Author(s):  
Imre J. Holb ◽  
Stefan Kunz
Keyword(s):  
Powdery Mildew ◽  
Integrated Control ◽  
Apple Scab ◽  
Apple Orchard ◽  
Organic Production ◽  
Organic Disease ◽  
Control Approach ◽  
Scab Control ◽  
Fallen Leaves ◽  
Cultivar Susceptibility

In a 4-year study in a whole-field sanitized organic apple orchard, the effectiveness of nine fungicide treatments, including potassium mono- and bicarbonate and their combinations with wettable sulfur, were evaluated for scab and powdery mildew control on two cultivars with different susceptibility to scab and powdery mildew, under two pruning treatments. The whole-field sanitation practice was performed by removal of infected fallen leaves. Treatment effects on phytotoxicity and yield were also determined. Pruning significantly reduced leaf scab incidence but only on the more scab-susceptible Idared. Pruning significantly reduced mildew incidence in most years and on both cultivars but the more mildew-susceptible Jonathan showed significantly higher mildew incidence than Idared. Among products approved for organic production, the best scab control was achieved with a potassium mono- or bicarbonate treatment combined with wettable sulfur, except for Jonathan in 2011 on leaf and in 2014 on both leaf and fruit, and for Idared in 2013 on fruit. The best mildew control was also achieved with potassium mono- or bicarbonate treatments combined with wettable sulfur, with exceptions on shoots of Idared in 2011 and 2013 and on fruit of Idared in 2012. Leaf phytotoxicity was significantly higher in all potassium carbonate treatments compared with untreated plots, except for Idared in 2012, while fruit russet in these treatments did not differ significantly from the untreated plots. However, phytotoxicity values of all carbonate treatments were significantly lower than the lime sulfur treatment in most years on both cultivars. Yield of the potassium mono- or bicarbonate treatments combined with wettable sulfur was significantly higher than the untreated plots in the pruned treatments for both cultivars in all years. The integrated control approach designed for organic disease management against the two pathogens is discussed.

scholarly journals Isolation of entomopathogenic nematodes in an apple orchard in Southern Brazil and its virulence to Anastrepha fraterculus (Diptera: Tephritidae) larvae, under laboratory conditions

2017 ◽  
Vol 77 (1) ◽  
pp. 22-28 ◽  
Author(s):  
E. Foelkel ◽  
M. Voss ◽  
L. B. Monteiro ◽  
G. Nishimura
Keyword(s):  
Entomopathogenic Nematodes ◽  
Abiotic Factors ◽  
Integrated Control ◽  
Weather Conditions ◽  
Apple Orchard ◽  
Soil Samples ◽  
Similar Frequency ◽  
Promising Alternative ◽  
Climate Conditions ◽  
Anastrepha Fraterculus

Abstract Entomopathogenic nematodes (EPNs) are a promising alternative to integrated control in many fruit pests. Few studies were made on the relationship of Anastrepha fraterculus natural population with native EPNs population and other biotic and abiotic factors. The aim of this work was to verify the occurrence of endemic nematodes in an apple orchard, concerning environmental conditions and technical procedure, and access isolates virulence to A. fraterculus larvae. The experiment was conducted during a year taking monthly soil samples from an apple orchard, with and without fallen fruits just above the soil. Samples were baited with Tenebrium molitor and A. fraterculus larvae in laboratory. Canopy and fallen fruits were sampled to access the pest infestation. Seventy three EPN isolates were captured, in 23.2% soil samples, more with T. molitor than with A. fraterculus baits. From the 20 isolates tested against A. fraterculus, only five were pathogenic, and they were identified as Oscheius sp. The nematodes were captured during all seasons in a similar frequency. Soil and weather conditions, presence of fruit over the orchard soil, and A. fraterculus pupae in the fruits had no significant influence on the capture. As a conclusion, nematodes of the genera Oscheius are found in an apple orchard of Porto Amazonas constantly along the year, independently of fluctuations in A. fraterculus population, climate conditions and presence of fruit over the soil. Some of the isolates are pathogenic to A. fraterculus.

Adaptive Integrated Control for Omnidirectional Mobile Manipulators Based on Neural-Network

2011 ◽  
pp. 310-325
Author(s):  
Xiang-min Tan ◽  
Dongbin Zhao ◽  
Jianqiang Yi ◽  
Dong Xu
Keyword(s):  
Neural Network ◽  
Large Scale ◽  
Integrated Control ◽  
External Disturbance ◽  
Torque Control ◽  
Mobile Manipulator ◽  
Mobile Manipulators ◽  
Modeling And Control ◽  
Control Approach ◽  
Proposed Model

An omnidirectional mobile manipulator, due to its large-scale mobility and dexterous manipulability, has attracted lots of attention in the last decades. However, modeling and control of such systems are very challenging because of their complicated mechanism. In this paper, an unified dynamic model is developed by Lagrange Formalism. In terms of the proposed model, an adaptive integrated tracking controller, based on the computed torque control (CTC) method and the radial basis function neural-network (RBFNN), is presented subsequently. Although CTC is an effective motion control strategy for mobile manipulators, it requires precise models. To handle the unmodeled dynamics and the external disturbance, a RBFNN, serving as a compensator, is adopted. This proposed controller combines the advantages of CTC and RBFNN. Simulation results show the correctness of the proposed model and the effectiveness of the control approach.

Design and control integration of media advance systems for thermal inkjet printers

2007 ◽  
Vol 221 (6) ◽  
pp. 739-750
Author(s):  
C-Y Chen ◽  
T-C G Chiu
Keyword(s):  
Integrated Control ◽  
Integrated Design ◽  
Integrated Approach ◽  
Control Approach ◽  
Design Tolerance ◽  
Analysis And Synthesis ◽  
Inkjet Printers ◽  
The Media ◽  
And Control ◽  
Synthesis Approach

In this paper, an integrated approach has been proposed to the design and control of the media advance system in thermal inkjet printers. Using H∞ analysis and synthesis approach, the effects of design tolerance and system disturbance on the achievable performance is characterized. The media advance system of thermal inkjet printers is used to illustrate the effectiveness of the proposed approach. The benefit of using an integrated design and control approach has also been discussed. It has been verified that this integrated control will offer the better performance at the lower cost for the inkjet printers used.

scholarly journals Determining the Impact of a School-Based Health Education Package for Prevention of Intestinal Worm Infections in the Philippines: Protocol for a Cluster Randomized Intervention Trial (Preprint)

2020 ◽  
Author(s):  
Mary Lorraine S Mationg ◽  
Gail M Williams ◽  
Veronica L Tallo ◽  
Remigio M Olveda ◽  
Eindra Aung ◽  
...  
Keyword(s):  
Health Education ◽  
School Attendance ◽  
Integrated Control ◽  
The Philippines ◽  
Intervention Trial ◽  
Control Approach ◽  
School Based ◽  
Randomized Intervention ◽  
Cluster Randomized ◽  
The Impact

BACKGROUND Repeated mass drug administration (MDA) of antihelminthics to at-risk populations is still the main strategy for the control of soil-transmitted helminth (STH) infections. However, MDA, as a stand-alone intervention, does not prevent reinfection. Accordingly, complementary measures to prevent STH reinfection, such as health education and improved sanitation, as part of an integrated control approach, are required to augment the effectiveness of MDA for optimal efficiency and sustainability. OBJECTIVE The aim of this study is to determine the impact and generalizability of a school-based health education package entitled <i>The Magic Glasses</i> for STH prevention in the Philippines. METHODS We conducted a cluster randomized controlled intervention trial, involving 2020 schoolchildren aged 9-10 years, in 40 schools in Laguna Province, Philippines, to evaluate the impact of the school-based health education package for the prevention of STHs. The trial was conducted over the course of 1 year (June 2016 to July 2017). A total of 20 schools were randomly assigned to the intervention arm, in which <i>The Magic Glasses Philippines</i> health education package was delivered with the standard health education activities endorsed by the Philippines Department of Health (DOH) and the Department of Education (DepEd). The other 20 schools comprised the control arm of the study, where the DOH/DepEd’s standard health education activities were done. At baseline, parasitological assessments and a knowledge, attitude, and practice survey were carried out in all schools. In addition, height, weight, and hemoglobin levels were obtained from each child (after parental consent), and their school attendance and academic performance in English and mathematics were accessed from the school records. The baseline and 2 follow-up surveys were completed using the same study measurements and quality-control assessments. RESULTS Key results from this cluster randomized intervention trial will shed light on the impact that <i>The Magic Glasses</i> health education package will have against STH infections in schoolchildren in the province of Laguna, located on the Island of Luzon, in the Calabarzon Region of the Philippines. CONCLUSIONS The results of the trial will be used to assess the generalizability of the impact of <i>The Magic Glasses</i> health education package in different epidemiological and cultural settings, providing evidence for translation of this health education package into public health policy and practice in the Asian region and beyond. CLINICALTRIAL Australian New Zealand Clinical Trials Registry number ACTRN12616000508471; https://www.anzctr.org.au/Trial/Registration/TrialReview.aspx?id=368849 INTERNATIONAL REGISTERED REPORT DERR1-10.2196/18419

Adaptive Integrated Control for Omnidirectional Mobile Manipulators Based on Neural-Network

2009 ◽  
Vol 3 (4) ◽  
pp. 34-53 ◽  
Author(s):  
Xiang-min Tan ◽  
Dongbin Zhao ◽  
Jianqiang Yi ◽  
Dong Xu
Keyword(s):  
Neural Network ◽  
Large Scale ◽  
Integrated Control ◽  
External Disturbance ◽  
Torque Control ◽  
Mobile Manipulator ◽  
Mobile Manipulators ◽  
Modeling And Control ◽  
Control Approach ◽  
Proposed Model

An omnidirectional mobile manipulator, due to its large-scale mobility and dexterous manipulability, has attracted lots of attention in the last decades. However, modeling and control of such systems are very challenging because of their complicated mechanism. In this article, an unified dynamic model is developed by Lagrange Formalism. In terms of the proposed model, an adaptive integrated tracking controller, based on the computed torque control (CTC) method and the radial basis function neural-network (RBFNN), is presented subsequently. Although CTC is an effective motion control strategy for mobile manipulators, it requires precise models. To handle the unmodeled dynamics and the external disturbance, a RBFNN, serving as a compensator, is adopted. This proposed controller combines the advantages of CTC and RBFNN. Simulation results show the correctness of the proposed model and the effectiveness of the control approach.

Co-infection of schistosomiasis, malaria, HBV and HIV among adults living in Eggua Community, Ogun State, Nigeria

2020 ◽  
Vol 41 (1) ◽  
pp. 82-86
Author(s):  
P. Olayinka ◽  
P. Ajide ◽  
H.O. Awobode ◽  
A.J. Osundiran ◽  
O.S. Onile ◽  
...  
Keyword(s):  
Schistosoma Haematobium ◽  
Integrated Control ◽  
Parasitic Disease ◽  
Cross Sectional ◽  
Urinary Schistosomiasis ◽  
Control Approach ◽  
Ogun State ◽  
Chi Squared ◽  
Conventional Microscopy ◽  
The Tropics

Schistosomiasis is a parasitic disease caused by the blood fluke that continues to plague many developing countries in the tropics. The goal of this study was to determine the occurrence of schistosomiasis, malaria, HBV and HIV co-infection among adults in some villages of Eggua Community, Nigeria (Tata, Imoto, Orile and Ebute Igbooro). In cross-sectional surveys, 240 participants were recruited from Orile and Ebute Igbooro and 207 from Tata and Imoto. Urine samples were collected and tested for urinary schistosomiasis by conventional microscopy; blood samples were tested for HBV, HIV and malaria using standard RDTs and microscopy respectively. Prevalence and co-infection of the diseases was analyzed by chi-squared (x2) test. The prevalence of schistosomiasis and malaria was 21.3% and 11.1% in Tata and Imoto respectively; and 14.5% and 19.1% in Orile and Ebute Igbooro, respectively. The overall prevalence of co-infection of urinary schistosomiasis with malaria was 2.5% and 0.4% each with HIV and HBV in the study areas. Schistosoma haematobium and Plasmodium falciparum are prevalent in the study-area, and an integrated control approach directed against the two parasites should be carried out. Keywords: Schistosomiasis; malaria; co-infection; HBV and HIV.

scholarly journals New approaches to disease vector control in the context of sustainable development

1992 ◽  
Vol 8 (3) ◽  
pp. 240-248 ◽  
Author(s):  
Robert Bos
Keyword(s):  
Vector Control ◽  
Integrated Control ◽  
Health Sector ◽  
Control Measures ◽  
Policy Framework ◽  
Disease Vectors ◽  
Rapid Urbanization ◽  
Control Approach ◽  
Vector Borne Diseases ◽  
Management Measures

Faced with problems that are specific to the health sector and ones associated with issues of sustainability, programmes for the control of vector-borne diseases are increasingly resorting to environmental management measures to reduce populations of disease vectors as pan of an integrated control approach. The broader problems on the interface between environment and development that need to be addressed in the context of vector control include accelerated development of natural resources, demographic changes in rural populations and rapid urbanization. Disease vectors need to be recognized as biological risk factors to human health in the environment, and for a sustainable implementation of vector control measures, these should be made an integral pan of the development process. This requires modifications in the policy framework, expansion of our knowledge base, development of operational methods and techniques and a shift in emphasis in training and education.

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