The essential oil from industrial hemp (Cannabis sativa L.) by-products as an effective tool for insect pest management in organic crops
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027006%3A_____%2F18%3A00004605" target="_blank" >RIV/00027006:_____/18:00004605 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.indcrop.2018.05.032" target="_blank" >http://dx.doi.org/10.1016/j.indcrop.2018.05.032</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.indcrop.2018.05.032" target="_blank" >10.1016/j.indcrop.2018.05.032</a>
Alternative languages
Result language
angličtina
Original language name
The essential oil from industrial hemp (Cannabis sativa L.) by-products as an effective tool for insect pest management in organic crops
Original language description
The inflorescences of industrial hemp (Cannabis sativa L.) represent a consistent by-product that is underutilized. Moving from the concept that this plant part has evolved as a natural weapon against phytophagous insects, secreting important secondary metabolites such as cannabinoids and volatile terpenes, herein we assayed the potential of its essential oil as a botanical insecticide. For the purpose, the essential oil was obtained by fresh inflorescences of hemp (monoecious cv. Felina 32) by steam-distillation and analysed by gas chromatography (GC-FID) and gas chromatography-mass spectrometry (GC-MS). The oil was tested against the filariasis vector Culex quinquefasciatus, the peach-potato aphid Myzus persicae, the housefly Musca domestica and the tobacco cutworm Spodoptera littoralis. To prove its harmlessness on non-target invertebrates, it was tested on the multicolored Asian lady beetle, Harmonia axyridis, and Eisenia fetida earthworms, and compared with alpha-cypermethrin as the positive control. The essential oil composition was dominated by monoterpene and sesquiterpene hydrocarbons, with (E)-caryophyllene (45.4%), myrcene (25.0%) and alpha-pinene (17.9%) as the most abundant compounds. Results from insecticidal tests showed that the essential oil from inflorescences of industrial hemp cv Felina 32 was highly toxic to M. persicae aphids (LC50 of 3.5 mL L-1) and M. domestica flies (43.3 g adult(-1)), while toxicity was moderate towards S. littoralis larvae (152.3 pg larva(-1)), and scarce against C. quinquefasciatus larvae (LC50 of 252.5 mL L-1) and adults (LC50 > 500 mu g cm(-2)). Contrary to alpha-cypermethrin, the hemp cv Felina 32 essential oil was not toxic to non-target invertebrate species, including 3rd instar larvae and adults of H. axyridis ladybugs and adults of E. fetida earthworms. Taken together our results shed light on the possible utilization of the crop residue of industrial hemp as a source of environmental-friendly botanical insecticides to be used in Integrated Pest Management and organic agriculture, particularly to manage aphid and housefly populations.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
40106 - Agronomy, plant breeding and plant protection; (Agricultural biotechnology to be 4.4)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Industrial Crops and Products
ISSN
0926-6690
e-ISSN
1872-633X
Volume of the periodical
122
Issue of the periodical within the volume
OCT 15 2018
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
8
Pages from-to
308-315
UT code for WoS article
000442067300038
EID of the result in the Scopus database
2-s2.0-85048139561