{"id":642,"date":"2011-01-20T07:07:43","date_gmt":"2011-01-20T07:07:43","guid":{"rendered":"http:\/\/envafs.dungnq.local\/2011\/01\/20\/research-on-the-improvement-butterfly-light-trap-to-prevent-pine-caterpillar\/"},"modified":"2011-01-20T07:07:43","modified_gmt":"2011-01-20T07:07:43","slug":"research-on-the-improvement-butterfly-light-trap-to-prevent-pine-caterpillar","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/en\/2011\/01\/research-on-the-improvement-butterfly-light-trap-to-prevent-pine-caterpillar\/","title":{"rendered":"Research on the improvement butterfly light trap to prevent pine caterpillar"},"content":{"rendered":"

\nPham Dang Quoc<\/span><\/strong>\n<\/p>\n

\nResearch<\/span><\/em> Center for Forest Industry<\/span><\/em>\n<\/p>\n

\nPine caterpillar (Dendrolimus punctatus <\/em>Walker)  <\/span>damages pine forests in many countries, causing rapid loss of fertility, and so it is a major pest. Four thousand one hundred and thirty three hectares of pine forest has been damaged by pine caterpillar in Nghe An in 2003.  <\/span><\/span>P<\/span>ine caterpillar operates at night<\/span> and is highly attracted to<\/span> <\/span>light, therefore <\/span>us<\/span>ing<\/span> light traps for forecast to epidemi<\/span>ca and<\/span> to kill the butterflies<\/span> of<\/span> pine caterpillar is effective without causing environmental pollution.<\/span>\n<\/p>\n

\nMost of the butterfly light trap<\/span>s in Vietnam<\/span> <\/span>are<\/span> imported, and<\/span> have<\/span> technical features which are<\/span> <\/span>not consistent with the<\/span> <\/span>conditions of use in Vietnam (low mobility, high cost etc). Therefore, research is <\/span>necessary<\/span>. <\/strong><\/span>\n<\/p>\n

\nSurvey<\/span>ing<\/span> and collecting the <\/span>light-trap samples<\/span> (both ones made in Viet Nam and imported ones), define specifications and the advantages and disadvantages to inherit and improve. Design<\/span> and<\/span> manufactu<\/span>re<\/span> the light<\/span>-trap models<\/span> us<\/span>ing<\/span> battery and grid electricity. Experiment<\/span>ing<\/span> and evaluati<\/span>ng light trap samples<\/span>. <\/span>Guiding t<\/span>echnolog<\/span>y<\/span> <\/span>of<\/span> use of light for production facilities<\/p>\n

Methodology<\/span><\/em>: <\/strong>Select<\/span>ing<\/span> sample; Copy<\/span>ing <\/span>of the inheritance for design; Calculat<\/span>ing <\/span>some of the main<\/span> specifications theoretically; <\/span>Experimen<\/span>ta<\/span>t<\/span>ion: Measuring the<\/span> specifications and <\/span>experimenting<\/span> samples <\/span>on the field<\/span> <\/span>with h<\/span>omogeneous of <\/span>experimental<\/span> conditions<\/span> such as: <\/span>location, time, light value equivalent; <\/span>Using <\/span>Statistical<\/span> methods for <\/span>proces<\/span>s<\/span> obtained<\/span> data<\/span>.<\/p>\n

<\/span>Some <\/span><\/em>improvements on the researched light trap in comparison to the best imported one<\/span><\/em>.<\/span>\n<\/p>\n

\n+ The polar<\/span>s<\/span> and <\/span>security mesh<\/span> <\/span>made of<\/span> normal steel is <\/span>replaced by<\/span> <\/span>rustless <\/span>steel <\/span>\n<\/p>\n

\n+ Gaps of <\/span><\/span>around security <\/span><\/span><\/span>mesh<\/span> of the lights is increased to reduce the obstructing parts butterfly flew discharge <\/span>\n<\/p>\n

\n+ Improve the primary source of light: us<\/span>ing<\/span> battery power instead of the grid electricity and power generators to expand the scope of <\/span>the <\/span>use of light in the forest<\/span> and <\/span>reduc<\/span>e<\/span> <\/span>using <\/span>costs<\/span>.<\/span> <\/span>\n<\/p>\n

\nConfronting <\/span><\/em>experiment<\/span><\/em> results:<\/span><\/em>\n<\/p>\n

\n– <\/span>Experiment<\/span> results<\/span> conducted<\/span> <\/span>at<\/span> Nghi Loc <\/span>forest enterprise<\/span> (Nghe An) in May and October 2007 show: light us<\/span>ing<\/span> grid electricity <\/span>is of the ability to<\/span> <\/span>attract<\/span> and kill butterfly <\/span>Pine caterpillars <\/span>equivalent <\/span>to imported light like<\/span> PCL 307 (Italy)<\/span>\n<\/p>\n

\n– <\/span>Experiment<\/span> results<\/span> carried out<\/span> <\/span>at<\/span> Nam Dan <\/span>forest enterprise, <\/span>Nghe An<\/span> province in<\/span> September  <\/span>2007 show: <\/span>light <\/span>us<\/span>ing<\/span> battery power ensure<\/span>s<\/span> the ability to kill butterflies<\/span> of<\/span> pine caterpillar<\/span> with<\/span> high mobility<\/span> and<\/span> can be placed in deep forest without generator or grid electricity, ensuring continuous operation during the night, stable, easily transported by motor or <\/span>two<\/span> people<\/span>.<\/span> <\/span>\n<\/p>\n

\nConclusions<\/span><\/em>
\n– Using butterfly light traps in the prediction and prevention of pests in general and the pine caterpillar <\/span>in particular is a simple and effective <\/span>measure.<\/span>\n<\/p>\n

\n– Two <\/span>improved<\/span> light<\/span> trap<\/span>s in <\/span>Vietnam<\/span> have <\/span>lower price in <\/span>comparison to imported ones with the equivalent<\/span> specifications, making sure to use stable, easy, safe, able to <\/span>attract and<\/span> kill butterflies pine caterpillar. <\/span>Improved light<\/span> us<\/span>ing<\/span> battery power <\/span>is highly <\/span>mobi<\/span>le, which <\/span>can be placed in forest without a generator or grids electricity.<\/span> <\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

\nPine caterpillar (Dendrolimus punctatus <\/em>Walker)  <\/span>damages pine forests in many countries, causing rapid loss of fertility, and so it is a major pest. Four thousand one hundred and thirty three hectares of pine forest has been damaged by pine caterpillar in Nghe An in 2003.  <\/span><\/span>P<\/span>ine caterpillar operates at night<\/span> and is highly attracted to<\/span> <\/span>light, therefore <\/span>us<\/span>ing<\/span> light traps for forecast to epidemi<\/span>ca and<\/span> to kill the butterflies<\/span> of<\/span> pine caterpillar is effective without causing environmental pollution.<\/span><\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[14],"tags":[],"_links":{"self":[{"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/posts\/642"}],"collection":[{"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/comments?post=642"}],"version-history":[{"count":0,"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/posts\/642\/revisions"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/media?parent=642"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/categories?post=642"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/tags?post=642"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}