Abstract:
Aphid is considered as damaging pest of canola that multiply rapidly on plant and cause significant crop losses. Pesticides are usually used for the management of aphid but these pesticides have adverse effect on environment and human health. In light of potential risk associated with synthetic pesticides utilizing the Silicon dioxide (SiO2) and Chrysoperla carnea as an alternate of synthetic pesticides. The study was conducted to evaluate the potential of SiO2 in integration with natural enemy C. carneaagainst canola aphid under field conditions. Different concentrations 400, 800 and 1200 ppm of SiO2 were applied using soil drenching and foliar application methods. SiO2 was applied three times 1st after 20 days of crop emergence, 2nd after15 days of first application and 3rdat appearanceof aphids on crop. The aphid population was recorded on weekly basis after treatments application. The results showed that application of SiO2 significantly reduced the aphid population at highest concentration of 1200 ppm as compare with 800 and 400 ppm. The average numbers of aphids recorded were 30.50 per plant at highest concentration followed by 54.00 and 44.00, 65.25 individuals per plant at 400, 800 ppm and control concentration, respectively of drenching application after 7th week of treatments application. Similarly, the foliar application at 1200 ppm 41.00 individuals were observed followed by 51.00, 47.25 and 61.25 at 400, 800 ppm and control after 7th week. Moreover, the results showed that the integration of C. carnea with SiO2 significantly reduced the aphid population in the field with the average numbers of individual 20.25 per plant at highest concentration of 1200 ppm followed by 33.25, 46.00 and 64.00 at 400. 800 ppm and control, respectively. Overall, the results showed that the foliar applications of SiO2 were more effective than drenching application while the integration of SiO2 with C. carnea were provide greater control of canola aphid as compare with alone treatments. It was concluded that SiO2 in integration with C. Carnea could beconsidered as eco-friendly, practicable crop protection technique to deal with the resistance development against aphids' population and a sustainable pests solution.
Page(s):
266-266
DOI:
DOI not available
Published:
Journal: Abstract Book on International Conference on Food and Applied Sciences (ICFAS-23) 3-5 August 23, Volume: 0, Issue: 0, Year: 2023
Keywords:
Chrysoperla carnea
,
aphid
,
foliar
,
Drenching
,
Silicon dioxide SiO2