Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Pesticide use in coconut against leaf beetle is safe

26.06.2009
In a recent study by pesticide toxicologists at UP Los Baños, the injection of neonicotenoid pesticides such as thiametoxam, imidachloprid and clothianidin in coconut trunks was found safe and effective in controlling the coconut leaf beetle (Brontispa longgisima).

Brontispa is a serious pest of coconut in the Philippines, having attacked more than 1.6 million coconut trees nationwide. Two years ago, 26 provinces were quarantined due to infestation to save the coconut industry- a vital component of the export economy.

Because of the emergency situation, the Philippine Coconut Authority (PCA) initially recommended the injection of pesticide into the trunks of coconut areas with severe and widespread infestation. However, the said chemicals were not yet registered for use in the country.

Thus, Dr. Leonila Varca and Mr. Lorenzo Fabro of UPLB-CA's National Crop Protection Center-Crop Science Cluster, in cooperation with the PCA in Quezon province, determined whether toxic substances were present in food products derived from coconuts given trunk injections of pesticide.

According to the group's study, the pesticides, when administered correctly, is effective against the larva and adult of the coconut leaf beetle. There is a need though to reapply the pesticides after 30 days in order to protect the coconut longer, thus raising concerns on possible toxicity of coconut products.

The researchers' results showed that the coconut water and coconut milk derived from trees 60 days after injection do not have any pesticide residue, and thus safe to consume. Processing the coconut into ordinary and virgin coconut oil, meanwhile, reduces pesticide concentration to almost zero.

The project, funded by the Philippine Council for Agriculture, Forestry and Natural Resources Research and Development, also noted that the said pesticides have no effect on the common earwig (Chelisoches morio)-the natural enemy of the coconut leaf beetle.

Florante A. Cruz | Research asia research news
Further information:
http://rdenews.uplb.edu.ph
http://www.researchsea.com

More articles from Agricultural and Forestry Science:

nachricht Alkaline soil, sensible sensor
03.08.2017 | American Society of Agronomy

nachricht New 3-D model predicts best planting practices for farmers
26.06.2017 | Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign

All articles from Agricultural and Forestry Science >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Fizzy soda water could be key to clean manufacture of flat wonder material: Graphene

Whether you call it effervescent, fizzy, or sparkling, carbonated water is making a comeback as a beverage. Aside from quenching thirst, researchers at the University of Illinois at Urbana-Champaign have discovered a new use for these "bubbly" concoctions that will have major impact on the manufacturer of the world's thinnest, flattest, and one most useful materials -- graphene.

As graphene's popularity grows as an advanced "wonder" material, the speed and quality at which it can be manufactured will be paramount. With that in mind,...

Im Focus: Exotic quantum states made from light: Physicists create optical “wells” for a super-photon

Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.

Light particles (photons) occur as tiny, indivisible portions. Many thousands of these light portions can be merged to form a single super-photon if they are...

Im Focus: Circular RNA linked to brain function

For the first time, scientists have shown that circular RNA is linked to brain function. When a RNA molecule called Cdr1as was deleted from the genome of mice, the animals had problems filtering out unnecessary information – like patients suffering from neuropsychiatric disorders.

While hundreds of circular RNAs (circRNAs) are abundant in mammalian brains, one big question has remained unanswered: What are they actually good for? In the...

Im Focus: RAVAN CubeSat measures Earth's outgoing energy

An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth's climate.

The Radiometer Assessment using Vertically Aligned Nanotubes (RAVAN) CubeSat was launched into low-Earth orbit on Nov. 11, 2016, in order to test new...

Im Focus: Scientists shine new light on the “other high temperature superconductor”

A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.

Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Call for Papers – ICNFT 2018, 5th International Conference on New Forming Technology

16.08.2017 | Event News

Sustainability is the business model of tomorrow

04.08.2017 | Event News

Clash of Realities 2017: Registration now open. International Conference at TH Köln

26.07.2017 | Event News

 
Latest News

A Map of the Cell’s Power Station

18.08.2017 | Life Sciences

Engineering team images tiny quasicrystals as they form

18.08.2017 | Physics and Astronomy

Researchers printed graphene-like materials with inkjet

18.08.2017 | Materials Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>