Entomocidal Activity of Powders and Extracts of Four Medicinal Plants against Sitophilus Oryzae ( L ) , Oryzaephilus Mercator ( Four ) and Ryzopertha Dominica ( Fabr. )

2014 ◽  
Vol 7 (1) ◽  
pp. 57-62 ◽  
Author(s):  
Kayode D. Ileke ◽  
Olaniyi C. Ogungbite
Keyword(s):  
Medicinal Plants ◽  
Sitophilus Oryzae ◽  
Oryzaephilus Mercator

VULNERABILITY OF COMMON WHEAT CULTIVARS TO MAJOR STORED-PRODUCT BEETLES

1988 ◽  
Vol 68 (2) ◽  
pp. 337-343 ◽  
Author(s):  
R. N. SINHA ◽  
C. J. DEMIANYK ◽  
R. I. H. McKENZIE
Keyword(s):  
Common Wheat ◽  
Sitophilus Oryzae ◽  
Insect Species ◽  
Rhyzopertha Dominica ◽  
Kernel Hardness ◽  
Western Canada ◽  
Wheat Cultivars ◽  
Major Species ◽  
Oryzaephilus Mercator ◽  
Exploratory Experiment

Vulnerability of seven common wheat cultivars to nine major species of stored-product beetles was determined in two experiments by measuring multiplication rates on whole and crushed seeds at 30 °C and 70% relative humidity for 12 wk. Susceptibility of a cultivar to an insect was assumed to be proportional to the multiplication of that insect. Vulnerability of cultivars varied considerably depending on the insect species infesting the seed. Whole seeds generally were less susceptible to insects than crushed seeds, except for Sitophilus spp. and Rhyzopertha dominica. In the first exploratory experiment using three cultivars and nine insect species, whole seeds of Norstar, HY320 and Neepawa were least susceptible to Tribolium audax and Oryzaephilus mercator, and most susceptible to Sitophilus oryzae and R. dominica. In the second experiment using six cultivars and six insect species, susceptibility of whole seeds appeared to be related to the kernel hardness of a cultivar with Glenlea and Neepawa being least susceptible to infestation by Cryptolestes ferrugineus, O. surinamensis, T. castaneum and T. confusum. Kernel hardness either did not affect or slightly affected the multiplication rates of Sitophilus spp. and R. dominica. Generally, soft wheat cultivars grown in western Canada are at a greater risk of postharvest insect damage than are the hard red spring cultivars; HY320 which is intermediate in kernel hardness may be prone to greater insect infestation.Key words: Wheat, Norstar, HY320, stored-product beetles

Fumigant toxicity of volatile natural products from Korean spices and medicinal plants towards the rice weevil,Sitophilus oryzae (L)

2001 ◽  
Vol 57 (6) ◽  
pp. 548-553 ◽  
Author(s):  
Sung-Eun Lee ◽  
Byoung-Ho Lee ◽  
Won-Sik Choi ◽  
Byeoung-Soo Park ◽  
Jeong-Gyu Kim ◽  
...  
Keyword(s):  
Natural Products ◽  
Medicinal Plants ◽  
Sitophilus Oryzae ◽  
Rice Weevil ◽  
Fumigant Toxicity

scholarly journals Repellent Activity of Waste Extract from Two Local Medicinal Plant Against Rice Weevil (Sitophilus oryzae)

2019 ◽  
Vol 11 (1) ◽  
pp. 62-67
Author(s):  
Priyantini Widiyaningrum ◽  
Devy Candrawati ◽  
Dyah Rini Indriyanti ◽  
Bambang Priyono
Keyword(s):  
Medicinal Plants ◽  
Waste Product ◽  
Sitophilus Oryzae ◽  
Rice Weevil ◽  
Repellent Effect ◽  
Insect Repellents ◽  
Preference Index ◽  
Ethanolic Extracts ◽  
Waste Extract ◽  
Better Than

In order to find natural and inexpensive bioinsecticides, the active compound of waste extract from two medicinal plants were analyzed.  Ethanolic extracts of Amomum cardamomum and Zingiber zerumbet were evaluated under laboratory conditions for their repellency against rice weevil (Sitophilus oryzae, L.). Four extracts concentration were tested in this research, i.e: 25, 50, 75 and 100%.  Efficacy was measured based on the response of rice weevil in preference tests using Y Olfactometer Tube, then the results were converted into the Percentage Repellency (PR) and Preference Index (PI). The PR data were analyzed using ANOVA, whereas PI values were analyzed descriptively. The result showed that the PR were significantly (LSD test; α> 0.05) and revealed that waste extracts repel the rice weevil at 100% solution.  The highest PR was found at 100% solution in both extracts, however, statistically the repellency of A. cardamomum waste extract was higher than Z. zerumbet’s. Likewise, the PI of both extracts showed negative value at 75 and 100% concentration. This study concluded that extract of A. cardamomum and Z. zerumbet wastes have repellent effect against rice weevil and A. cardamomum repellency is better than Z. zerumbet. The findings of this study can provide a useful information for development of a rice weevil repellent extracted from waste product of medicinal plants that is more economically and environmentally friendly than synthetic insect repellents.

scholarly journals Insecticidal effects of two medicinal plants Polygonum hydropiper L. and Abrus precatorius L. leaves against the rice weevil Sitophilus oryzae L. (Coleoptera: Curculionidae)

2020 ◽  
Vol 5 (2) ◽  
pp. 107-114
Author(s):  
SC Bhattacharjee ◽  
MM Matin ◽  
M Nasiruddin
Keyword(s):  
Medicinal Plants ◽  
Petroleum Ether ◽  
Plant Species ◽  
Leaf Extract ◽  
Sitophilus Oryzae ◽  
Rice Weevil ◽  
Leaf Extracts ◽  
Polygonum Hydropiper ◽  
Abrus Precatorius ◽  
Ether Solvents

During the study, the leaves of two medicinal plants, Polygonum hydropiper and Abrus precatorius were extracted with water, ethanol, methanol and petroleum ether solvents and tested against the rice weevil S. oryzae L. for insecticidal properties. Response varied with plant species. The mortality of adults increased with increasing dose concentrations from 1000 ppm to 5000 ppm each solution, with an exposure time of 72 hours. LC50 values calculated were found to be 15091.436 ppm with water, 5051.534 ppm with ethanol, 5111.063 ppm with methanol and 4305.348 ppm with petroleum ether extracts of P. hydropiper and 9687.292 ppm with water, 6263.849 ppm with ethanol, 4682.683 ppm with methanol and 3222.984 ppm with petroleum ether extracts of Abrus precatorius leaves corresponding their concentrations of the leaf extract solutions at 1000ppm, 2000 ppm, 3000 ppm, 4000 ppm and 5000 ppm respectively. The results of the study showed that methanol and petroleum ether extrcts of P. hydropiper and ethanol, methanol and petroleum ether extracts of A. precatorius showed good toxicity. It appeared that the leaf extracts had some insecticidal activities against S. oryzae adult. J. Biodivers. Conserv. Bioresour. Manag. 2019, 5(2): 107-114

Antioxidant capacity of various medicinal plants, fruits and vegetables

Planta Medica ◽  
2008 ◽  
Vol 74 (09) ◽  
Author(s):  
A Sapcanin ◽  
A Imamovic ◽  
E Kovac-Besovic ◽  
K Durić ◽  
I Tahirovic ◽  
...  
Keyword(s):  
Medicinal Plants ◽  
Antioxidant Capacity ◽  
Fruits And Vegetables

A survey of medicinal plants used to treat rheumatoid arthritis in two northern districts of Bangladesh

Planta Medica ◽  
2009 ◽  
Vol 75 (09) ◽  
Author(s):  
F Rahman ◽  
S Hossan ◽  
AH Mollik ◽  
R Jahan ◽  
M Rahmatullah
Keyword(s):  
Rheumatoid Arthritis ◽  
Medicinal Plants

Medicinal plants used against malaria in several regions of bogra district, Bangladesh

Planta Medica ◽  
2009 ◽  
Vol 75 (09) ◽  
Author(s):  
AH Mollik ◽  
N Hasan ◽  
S Hossan ◽  
R Jahan ◽  
M Rahmatullah
Keyword(s):  
Medicinal Plants
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