Damage caused by Cerambyx dux (Faldermann, 1837) (Coleoptera, Cerambycidae) in apple orchards in northwestern Syria

Ali Ali

doi:10.12681/eh.24751

Damage caused by Cerambyx dux (Faldermann, 1837) (Coleoptera, Cerambycidae) in apple orchards in northwestern Syria

ENTOMOLOGIA HELLENICA ◽

10.12681/eh.24751 ◽

2020 ◽

Vol 29 (2) ◽

Author(s):

Ali Ali

Keyword(s):

Field Study ◽

Apple Orchards ◽

Trunk Diameter ◽

Longhorn Beetle ◽

Economic Pest

Results of a field study showed Cerambyx dux (Fladermann) to be a major economic pest of domestic apple orchards in northwestern Syria. Higher levels of attack were detected on trees with larger trunk diameters. All trees with trunk diameters > 10 cm were infested (5 to 7 infestation holes per tree). For trees with trunk diameters of 5 to 10 cm, the level of infestation was 87.8% (2 to 4 infestation holes per tree). No attack by the longhorn beetle C. dux was detected on trees with a trunk diameter < 5 cm.

Download Full-text

Preplant Fumigation of Reset `Lisbon' Lemon Trees

HortScience ◽

10.21273/hortsci.32.3.541c ◽

1997 ◽

Vol 32 (3) ◽

pp. 541C-541

Author(s):

M.A. Maurer ◽

M.E. Matheron

Keyword(s):

Field Study ◽

Tree Growth ◽

Growth And Development ◽

Soil Samples ◽

Soil Fumigation ◽

Soil Sampling ◽

Citrus Limon ◽

Trunk Diameter ◽

Carrizo Citrange

A field study was conducted near Mesa, Ariz., in a mature lemon grove with reset `Lisbon' lemon trees (Citrus limon) on a Carrizo citrange rootstock to determine the effects of stump removal and preplant soil fumigation on reset tree growth and development. Treatments consisted of resets planted with or without tree stumps and in addition with or without preplant Vapam. Pretreatment soil samples average 2.1 propagals of Phytophthora per gram of soil; however, after Vapam treatments, Phytophthora was not detected in the treated plots. In subsequent soil sampling for 2 years, Phytophthora was detected in only one plot treated with Vapam. Tree growth and vigor was greatest for resets that had stumps removed and preplant Vapam followed by resets with stumps present and preplant Vapam based on visual ratings and trunk diameter measurements. In addition, resets without stumps were more vigorous than resets where stumps were present.

Download Full-text

Biocontrol of moth pests in apple orchards: Preliminary field study of application potential for mass trapping

Biotechnology and Bioprocess Engineering ◽

10.1007/s12257-010-0127-7 ◽

2011 ◽

Vol 16 (1) ◽

pp. 153-157 ◽

Cited By ~ 5

Author(s):

Hwan-Seok Choi ◽

Geun-Joong Kim ◽

Hyun-Jae Shin

Keyword(s):

Field Study ◽

Mass Trapping ◽

Apple Orchards ◽

Application Potential

Download Full-text

Pesticide exposure of workers in apple growing in France

International Archives of Occupational and Environmental Health ◽

10.1007/s00420-021-01810-y ◽

2021 ◽

Author(s):

Mathilde Bureau ◽

Béatrix Béziat ◽

Geoffroy Duporté ◽

Valérie Bouchart ◽

Yannick Lecluse ◽

...

Keyword(s):

Field Study ◽

Pesticide Exposure ◽

Health Impact ◽

Work Characteristics ◽

Body Parts ◽

Apple Orchards ◽

Apple Trees ◽

External Contamination ◽

Hail Net

Abstract Objective Although apple trees are heavily sprayed, few studies have assessed the pesticide exposure of operators and workers in apple orchards. However, these data are crucial for assessing the health impact of such exposures. The aim of this study was to measure pesticide exposure in apple growing according to tasks and body parts. Methods A non-controlled field study was conducted in apple orchards in 4 regions of France during the 2016 and 2017 treatment seasons. Workers’ external contamination and their determinants were assessed over 156 working days corresponding to 30 treatment days, 68 re-entry days and 58 harvesting days. We measured pesticide dermal contamination during each task and made detailed observations of work characteristics throughout the day. Captan and dithianon were used as markers of exposure. Results The median dermal contamination per day was 5.50 mg of captan and 3.33 mg of dithianon for operators, 24.39 mg of captan and 1.84 mg of dithianon for re-entry workers, and 5.82 mg of captan and 0.74 mg of dithianon for harvesters. Thus, workers performing re-entry tasks, especially thinning and anti-hail net opening, presented higher contamination, either equal to or higher than in operators. For these last ones, mixing/loading and equipment cleaning were the most contaminating tasks. Most of the contamination was observed on workers’ hands in all tasks, except for net-opening in which their heads accounted for the most daily contamination. Conclusions This study highlights the importance of taking indirect exposures into account during re-entry work in apple growing.

Download Full-text

Seminar and Field Study

Kappa Delta Pi Record ◽

10.1080/00228958.1966.10516624 ◽

1966 ◽

Vol 2 (4) ◽

pp. 146-146

Keyword(s):

Field Study

Download Full-text

Investigating the Unified Motive Scales

European Journal of Psychological Assessment ◽

10.1027/1015-5759/a000571 ◽

2020 ◽

pp. 1-5

Author(s):

Martin Bettschart ◽

Marcel Herrmann ◽

Benjamin M. Wolf ◽

Veronika Brandstätter

Keyword(s):

Field Study ◽

Predictive Validity ◽

Selection Process ◽

Police Department ◽

Longitudinal Field ◽

Explicit Motives ◽

Achievement Motive

Abstract. Explicit motives are well-studied in the field of personality and motivation psychology. However, the statistical overlap of different explicit motive measures is only moderate. As a consequence, the Unified Motive Scales (UMS; Schönbrodt & Gerstenberg, 2012 ) were developed to improve the measurement of explicit motives. The present longitudinal field study examined the predictive validity of the UMS achievement motive subscale. Applicants of a police department ( n = 168, Mage = 25.11, 53 females and 115 males) completed the UMS and their performance in the selection process was assessed. As expected, UMS achievement predicted success in the selection process. The findings provide first evidence for the predictive validity of UMS achievement in an applied setting.

Download Full-text

Employees’ Critical Thinking, Leaders’ Inspirational Motivation, and Voice Behavior

Journal of Personnel Psychology ◽

10.1027/1866-5888/a000193 ◽

2018 ◽

Vol 17 (1) ◽

pp. 33-41 ◽

Cited By ~ 4

Author(s):

Jing Jiang ◽

Ang Gao ◽

Baiyin Yang

Keyword(s):

Critical Thinking ◽

Field Study ◽

Voice Behavior ◽

Research And Practice ◽

Inspirational Motivation ◽

Positive Effect

Abstract. This study uses implicit voice theory to examine the influence of employees’ critical thinking and leaders’ inspirational motivation on employees’ voice behavior via voice efficacy. The results of a pretest of 302 employees using critical thinking questionnaires and a field study of 273 dyads of supervisors and their subordinates revealed that both employees’ critical thinking and leaders’ inspirational motivation had a positive effect on employees’ voice and that voice efficacy mediates the relationships among employees’ critical thinking, leaders’ inspirational motivation, and employees’ voice. Implications for research and practice are discussed.

Download Full-text