Study the effect of some environmental factorial and chemical pesticides on different stages of Dubas bugs Ommatissus binotatus lybicus Deberg. on two categories of the Date palm Phoenix dactylifera L. under field conditions.
DOI:
https://doi.org/10.59658/jkas.v3i3.538Abstract
The date palm Phoenix dactylifera L. is infected by many insects and non-insect pests in Iraq. One of the major pests of palm trees is Dubas Bugs Ommatissus binotatus lybicus Deberg. .
This study was carried out in two orchards in terms of Albahadlah - the holy city of Kerbala (the distance between them is about 3 kilometers ) for the period from 09/01/2013 up to 03/04/2014 to study the effect of temperature and relative humidity levels as well as insecticides (plant extracts) Thiamethoxan WC and Alphacypermethrin EC on numerical density of the number of eggs and movable stages (nymphs and adults) as well as on the percentage of male and female Dubas on the palm of the two categories Zahadi and Khstawe on field conditions.
The results showed an increase numerical density when the average temperature is between 25-33 C° and relative humidity between 30-50% and the heavy torrential rains during the implementation of this study impact in reducing the population density of the instars of moving the insect did not eggs developed by former female preparation affected. The absence of significant differences between the preparation of movable instars rates and the number of eggs for the two categories Zahdi and Khstawe It was noted, but there were significant differences between female adult insect for two classes Zahdi and Khstawe if the overall rate of female adults is 2.26,2.48 Females / 5 Pinnaes / Palm / week for two classes Zahdi and Khstawe ,respectively and the total rate of male adults is 1.86,2.14 Males / 5 Pinnaes / Palm / week for two classes Zahdi and Khstawe ,respectively . As well as the results showed the existence of significant differences between the effect of pesticides on the overall rate of live stages of the two categories Zahdi and Khstawe and the presence of significant differences dead stages is 4.56 insects / Pinnae of the variety and ascetic 3.26 insects / 10 pinnaes. When the percentage of the effectiveness of insecticides account and found that the percentage of the effectiveness of Alphacypermethin was 19.34% and for Thiamethoxan is 40.78% and the latter was more the effect of the pesticide after 24,48 and 72 hours of control. The decline in the percentage of females and males before control, as was 64.58% for females and 35.42% for males of the variety Zahdi and 59.61% for females and 40.31% for males of the variety Khstawe for increase after the fight, as was 48.26% of females and 26.04% for males of the variety Zahdi and 45.24% for females and 29 0.51% for males of the variety Khstawe.
The results of the effect of insecticides on the population density of the number of eggs did not record any significant differences evident between times beyond control but they differ significantly on the number of eggs living and the dead by the control.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2016 Journal of Kerbala for Agricultural Sciences
This work is licensed under a Creative Commons Attribution 4.0 International License.
Licensing Terms
All articles are published under a Creative Commons License and will be directed to the Creative Commons Attribution 4.0 International License That permits use, distribution, and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.
Use by non-commercial users
For non-commercial and non-promotional purposes individual users may access, download, copy, display, and redistribute the articles to colleagues, as well as adapt, translate, text- and data-mine the content subject to the following conditions:
- The author's moral rights are not compromised. These rights include the right of "paternity" (also known as "attribution" - the right for the author to be identified as such) and "integrity" (the right for the author not to have the work altered in such a way that the author's reputation, or integrity may be impugned).
- Where content in the article is identified as belonging to a third party, it is the obligation of the user to ensure that any reuse complies with the copyright policies of the owner of that content.
- If article content is copied, downloaded, or otherwise reused for non-commercial research and education purposes, a link to the appropriate bibliographic citation (authors, journal, article title, volume, issue, page numbers, DOI, and the link to the definitive published version on JKAS website) should be maintained.
- Copyright notices and disclaimers must not be deleted.
- Any translations, for which a prior translation agreement with JKAS has not been agreed, must prominently display the statement: "This is an unofficial translation of an article that appeared in an FSP publication. The publisher has not endorsed this translation."
Use by commercial "for-profit" organizations
Use of JKAS Open Access articles for commercial, promotional, or marketing purposes requires further explicit permission from JKAS (journal.agri@uokerbala.edu.iq) and will be subject to a fee.
The commercial purposes include:
Copying or downloading of articles, or linking to such articles for further redistribution, sale, or licensing; Copying, downloading, or posting by a site or service that incorporates advertising with such content; The inclusion, or incorporation of article content in other works, or services (other than normal quotations with an appropriate citation) that is then available for sale or licensing, for a fee (for example, a compilation produced for marketing purposes, inclusion in a sales pack); Use of article content (other than normal quotations with appropriate citation) by for-profit organizations for promotional purposes; Linking to article content in e-mails redistributed for promotional, marketing or educational purposes; Use for the purposes of monetary reward by means of sale, resale, license, loan, transfer or other form of commercial exploitation such as marketing products; Print reprints of articles can be purchased from journal.agri@uokerbala.edu.iq.
Permissions
- No special permission is required to reuse all, or part of the article published by JKAS, including figures and tables for non-commercial purposes.
- Any part of the article may be reused, for non-commercial purposes, without permission provided that the original article is cited.
- Reuse of an article does not imply endorsement by the authors, JKAS
