Volume 6, Issue 1, February 2017, Page: 45-48
The Life Tables of Dactylopius Coccus Costa (Homoptera: Dactylopiidae) at Different Temperatures and Humidities
Zhonghe Zhang, Research Institute of Resource Insects, Chinese Academy of Forestry, Kunming, China
Received: Feb. 2, 2017;       Accepted: Feb. 16, 2017;       Published: Mar. 2, 2017
DOI: 10.11648/j.aff.20170601.16      View  1781      Downloads  131
Abstract
A laboratory study on the life tables at different temperatures and humidities of the cochineal, Dactylopius coccus Costa, is summarized to reveal proper culturing environtment for the insect. It is found that constant temperature 19°C and 31°C are not suitable for cochineal culture while constant temperature 22°C, 25°C and 28°C are appropriate. Among them, 22°C is the most ideal temperature. In the experiments of humidity, the results show that under 90% RH, the number of the female adult of cochineal in the population is the most, and 70% RH is the next, while 50% RH is the lowest, it demonstrates that high humidity can be helpful for the insect. The main death period of the cochineal is from egg to the first instar, which death rate can be over 70%, it means that more attention should be paid to the period to decrease the death rate when the insect is cultured.
Keywords
Dactylopius Coccus Costa, Life Table, Temperature, Humidity, Population, Death Rate
To cite this article
Zhonghe Zhang, The Life Tables of Dactylopius Coccus Costa (Homoptera: Dactylopiidae) at Different Temperatures and Humidities, Agriculture, Forestry and Fisheries. Vol. 6, No. 1, 2017, pp. 45-48. doi: 10.11648/j.aff.20170601.16
Copyright
Copyright © 2017 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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