Evaluation of Kaolin in Control of Panonychus ulmi in Apple Orchards of Iran

Document Type : Short Research

Authors

• M. Arbabi ¹
• Gh.A. Akbarzadeh Shokat ²
• H. Karbalaei Khiavi ³
• M.S. Imami ⁴
• H. Kamali ⁵
• H. Farazmand ⁵

¹ Iranian Research Institute of Plant Protection (AREEO)

² Education Research and Natural Resources Center in West Azerbaijan

³ Education Research and Natural Resources Center in Ardebil

⁴ Agricultural Research, Education and Extension Organization (AREEO)

⁵ Agricultural Research,Education and Extension Organization

10.22067/jpp.v34i1.78908

Abstract

Introduction: European red mite (Panonychus ulmi (Koch)) and two-spotted spider mite (Tetranychus urticae Koch) are the two major pests of deciduous trees and most of the acaricides used in the control of them in apple orchards of Iran. The early of these two mite damages on leaf chlorophyll contents caused plant retardation, reduce fruit size and quality in apple production. Extensive mite pest damages during the middle of spring and summer months not only caused complete leaves shedding but side effects of this unusual condition imposed shortages of nutritional on vigorously of infested apple trees in next year on apple production also. Most of the new acaricides introduced and registered here in the last two decades demanded and evaluated against apple mite pests. Reduce the hazardous risk of synthetic acaricides application, so many efforts since 1995 undertaken since 1995 for sustainable mite pest’s management and keeping environmental and natural enemies safer in apple orchards. Evaluation of organic pesticides in developed countries in control of apple pests received more attention mostly to overcome spider mite pest damages in the world. In Iran, the only sulfur powder was tested in 1954 against citrus russet mite and no other mineral as an acaricide tested on apple mite pests in Iran. In this study, for the first time, the effect of Kaolin doses investigated on active stages of European red mite in four major apple growing orchards of Iran. Concerned literature survey indicated that this the first in depended kaolin effects report from Iran.
Material and Methods: Different kaolin doses (3, 4 and 5%) against Panonychus ulmi infested apple orchards during investigated 2014. Effect of this pesticide was compared with registered acaricides such as Envidor (spirodiclofen 240 SC), floramite (bifenazate 24% SC), Danitol (fenpropathrin 10% EC), Ortus (fenpyroximate 5% SC), 1.5% detergent dishwashing along with water sprayed on apple trees as in uncontrolled treatment. Experiments conducted in different provinces of Iran (West Azerbaijan, Esfahan, Ardebil and Khorasan Razavi provinces during 2014). Treatment effectiveness was determined by random 40 apple leaves collected at the interval of one day before and 3, 7, 14 and 21 days after treatments. Active mite stages on the upper side of the apple leaf counted with the help of a stereomicroscope. Collected alive mite raw data from each treatment at different interval times, converted into morality% by Henderson-Tilton formula. Mean mortality% analysis variance done with SAS software. Grouping and ranking effects of each treatment carried out by DUNCAN methods.
Results and Discussion: Mite mean density before treatments on apple leaves among treatments found varied during 2014 in different provinces. The highest mean of mite out of 40 leaves before treatments in West Azerbaijan, Esfahan, Ardebil and Khorasan Razavi provinces recorded 11.60±0.28, 13.52±1.29, 11.85±0.32 and 4.75±0.15 respectively with total apple leaves infestation of 65 to 80% in all provinces. Lower doses (3 and 4%) of kaolin pesticides in the control of mite pests in all experimental stations except in Ardebil observed very weakly and less than 50% up to 14 days after. The highest mite mortality% time up to 7 days after treatments for 5% kaolin dose recorded 75.97% and 78.70 up to 7 days in Oromia and Ardebil and up to 14 days after observed 66.68%, 75.23% in Esfahan and Khorasan Razavi provinces respectively. A sharp reduction in apple mite pest control recorded at 21 days sampling interval for kaolin 5%. All kaolin doses sprayed on apple trees found without phytotoxicity during the hot and dried period of sampling time in all places. Expected control with 5% kaolin application at the early stages of P. ulmi activity for a once during the growing season is possible.
Conclusion: Application 5% kaolin at the lower incidence of Panonychus ulmi for once during the growing season in apple orchards recommended.

Keywords

• Mineral pesticide
• Dose
• Mite pest
• Apple Orchard
• Control

20.1001.1.20084749.1399.34.1.2.0

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References

1- Anonymous. 2017. Pest Management guide for tree fruits in the mid Columbia area, Oregon State University Extension catalog at https://catalog. Extension. Oregon State. Education /em8419, 81pp.

2- Akabarzadeh Gh., and Arbabi M. 2005. Evaluation of the efficacy of new acaricide Etoxazole against the European red mite in comparison with current matricides in Wes Azerbaijan apple orchards. Journal of Research in Agricultural Sciences 2: 1-9. (In Persian with English abstract)

3- Akbarzadeh Shokat Gh.A., and Arbabi M. 2014. Effectiveness of biomite in the control European red mite (Panonychus ulmi Koch) in Oromia. Abstract proceeding 21ST National Iranian Plant Protection congress (23rd to 26th August, 2014), Collage of Agriculture and natural resources, Oromia University, P. 1016.

4- Brunner J.B., Jones W., Beers E., Tangren J.D., Dunley J., Xiao C.I., and Gary G.G. 2003. A Decade of pesticide use and IPM practices in Washington’s apple orchards. Agriculture and environmental news, a monthly report on pesticides and related environmental issues, Issue No. 205, 16pp.

5- Ghate A.V., and Marshall G.E. 1962. Preliminary studies on the ovicidal effects of wheat flour-butte milk combination on the eggs of Panonychus ulmi (Koch) in southern Indiana. Indiana Acad. Sci., 72: 140–141.

6- Kaufman L.V., and Wright M.G. 2012. Developing sustainable pests control practices against major pests in papaya in Hawaii. Department of plant and environmental protection sciences, University of Hawai’i at Mānoa, USA.

7- Kinght A.L., Christianson B.A., Unruh T.R., and Puterka G. 2001. Impacts of seasonal kaolin particle films on apple pest management 133: 413-428.

8- James D. 2004. Beneficial arthropods in Washington hop yards: Screening the impact of pesticides on survival and function. Final Report for Washington State Commission for Pesticide Registration: March 2004, Funding Period: February 2000-December 2003.

9- Shirdel D., and Arbabi M. 2016. Evaluation of biomite pesticide in control of Panonychus ulmi Koch population (Acari: Tetranychidae) in east Azerbaijan province. Abstract proceeding 22nd National Iranian Plant Protection congress (27th to 30th August, 2016), College of agriculture and natural resources Karaj, Tehran university, P.820.