Spatial distribution of the cottony camellia scale, Pulvinaria floccifera (Westwood) (Hemiptera: Coccidae) in the tea orchards
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Department of Plant Protection, Faculty of Agricultural Sciences, Shahed University, 3319118651 Tehran, Iran
Citrus Research Institute of Iran, 49917 Ramsar, Iran
Habib Abbasipour
Department of Plant Protection, Faculty of Agricultural Sciences, Shahed University, 3319118651 Tehran, Iran
Submission date: 2013-03-06
Acceptance date: 2014-01-20
Journal of Plant Protection Research 2014;54(1):44–52
In the north of Iran, near the Caspian Sea, about 35,627 ha is cultivated with tea plant, Camellia sinensis (L.) Kuntze on both plain and hilly land. The cottony camellia scale, Pulvinaria floccifera (Westwood) (Hemiptera: Coccidae) is one of the most important pests of tea orchards in the north of Iran. Spatial distribution is an important item in entomoecology and needs to be studied for many pest management programs. So, weekly sampling of P. floccifera population was carried out throughout the 2008–2010 season, in the tea gardens of the Tonekabon region of the Mazandaran province of Iran. Each cut branch of tea was determined as a sample unit and after primary sampling, sample size was calculated using the equation: N = (ts/dm)2, (d = 0.15, sample size = 50). The data acquired were used to describe the spatial distribution pattern of P. floccifera by Tylor’s power law, Iwao’s mean crowding regression, Index of Dispersion (ID), and Index of Clumping (IDM). Tylor’s power law (R2> 0.84) and Iwao’s mean crowding regression (R2 > 0.82) indicated that spatial distribution of 1st and 2nd nymphal instars is aggregated, but the distribution of 3rd instars, adults, and egg ovisacs is uniform. A result of ID and IDM showed that distribution of 1st, 2nd, and 3rd instars, adults, and egg ovisacs were aggregative each time the sampling was done.
The authors have declared that no conflict of interests exist.
Arnaldo P.S., Torres, L.M. 2005. Spatial distribution and sampling of Thaumetopoea pityocampa (Lep.: Thaumetopoeidea) populations of Pinus pinaster Ait. in Monntesinho, N. Portugal. Forest Ecol. Manage. 210 (1): 1–7.
Barbosa J.C., Perecin D. 1982. Probabilistic models for distributions of Spodoptera frugiperda (J.E. Smith, 1797), in maize. Científica 10: 181–191.
Binns M.R. 1994. Sequential sampling for classifying pest status. p. 137–174. In: “Handbook of Sampling Methods for Arthropods in Agriculture” (L.P. Pedigo, G.D. Buntin, eds.). CRC Press, Boca Raton, Florida, 416 pp.
Buntin G.D. 1994. Developing a primary sampling program. p. 99–11. In: “Handbook of Sampling Methods for Arthropods in Agriculture” (L.P. Pedigo, G.D. Buntin, eds.). CRC Press, Boca Raton, Florida, 416 pp.
David F.N., Moore P.G. 1954. Notes on contagious distributions in plant populations. Ann. Bot. 18 (1): 47–53.
Elliott N.C., Kieckhefer R.W. 1986. Spatial distributions of cereal aphids in winter wheat and spring oats in South Dakota. Environ. Entomol. 16 (4): 896–901.
Esfandiari M., Mossadegh M.S. 2007. Spatial distribution and sampling of Icerya purchasi Mask. (Hom.: Margarodidae) on orange trees in southwest Iran. J. Biol. Sci. 7 (7): 1239–1243.
Faleiro J.R., Kumar J.A., Ranjekar P.A. 2002. Spatial distribution of red palm weevil Rhynchophorus ferrugineus Oliv. (Coleoptera: Curculionidae) in coconut plantations. Crop Prot. 21 (2): 171–176.
Feng M.G., Nowierski R.M., Zeng Z., Scharen A.L. 1993. Estimation of population density of the Russian wheat aphid (Homoptera: Aphididae) from the proportion of grain tillers with the different tally threshold of aphids. J. Econ. Entomol. 86 (2): 427–435.
Geiger C.A., Daane K.M. 2001. Seasonal movement and sampling of the grape mealybug, Pseudococcus maritimus (Ehrhorn) (Homoptera: Pseudococcidae), in San Joaquin Valley vineyards. J. Econ. Entomol. 94 (1): 291–301.
Golizadeh A.R. 2006. Temporal Needs and Population Dynamics of Plutella xylostella (L.) (Lep.: Plutellidae). The doctoral dissertation of agricultural entomology. Tarbiat Modarres University, Tehran, 200 pp.
Hallajisani M.F. 2006. Biology, Population Facultative and Spatial Pattern of Pulvinaria auranti (Hemiptera: Coccidae) in Citrus Garden in Mazandaran in Iran. Final Report. Citrus Research Institute of Iran, Ramsar, 70 pp.
Haughes G.M. 1996. Incorporating spatial pattern of harmful organisms into crop loss models. Crop Prot. 15 (5): 407–421.
Ifoulis A.A., Savopulou-Soultani M. 2006. Developing optimum sample size and multistage sampling plans for Lobesia botrana (Lepidoptera: Tortricidae) larval infestation and injury in Northern Greece. J. Econ. Entomol. 99 (5): 1890–1898.
Iwao S., Kuno E. 1968. Use of the regression of mean crowding on mean density for estimating sample size and the transformation of data for the analysis of variance. Res. Popul. Ecol. 10 (2): 210–214.
Jarosik V., Honek A., Dixon A.F.G. 2003. Natural enemy ravine revisited: The importance of sample size for determining population growth. Ecol. Entomol. 28 (1): 85–91.
Kozár F., Mani F., Hippe C. 2009. Daily rhythm of emergence and flight of males of Pseudaulacaspis pentagona (Hemiptera: Coccoidea). Acta Phytopathol. Entomol. Hung. 44 (1): 185–191.
Krebs C.J. 1999. Ecological Methodology. 2nd ed. Addison Wesley Longman Inc., New York, 620 pp.
Kuno E. 1991. Sampling and analysis of insect populations. Ann. Rev. Entomol. 36: 285–304.
Liu C., Wang G., Wang W., Zhou S. 2002. Spatial pattern of Tetranychus urticae population apple tree garden. J. Appl. Ecol. 13 (8): 993–996.
Lloyd M. 1967. Mean crowding. J. Anim. Ecol. 36: 1–30.
Loch A.D., Zalucki M.P. 1996. Spatial distribution of pink wax scale, Ceroplastes rubens Maskell (Hemiptera: Coccidae), on umbrella trees in south-eastern Queensland: The pattern of outbreaks. Aust. J. Zool. 44 (6): 599–609.
Ludwig J.A., Reynolds J.F. 1988. Statistical Ecology a Primer on Methods and Computing. John Wiley and Sons Inc., New York, 368 pp.
Meagher R.L., Rosa W.E., Deisi D.R.L. 1996. Sampling of Eoreuma loftini on Texas sugarcane. Environ. Entomol. 25 (1): 7–16.
Nestel D., Cohen H., Saphir N., Klein M., Mendel Z. 1995. Spatial distribution of scale insects: comparative study using Taylors power law. Environ. Entomol. 24 (3): 506–512.
Patrick K., Rourke O., Hutchison W.D. 2003. Sequential sampling plans for estimating European corn borer (Lepidoptera: Crambidae) and corn earworm (Lepidoptera: Noctuidae) larval density in sweet corn ears. Crop Prot. 22 (7): 903–909.
Pedigo L.P. 1994. Introduction to sampling arthropod populations. p. 1–11. In: “Handbook of Sampling Methods for Arthropods in Agriculture” (L.P. Pedigo, G.D. Buntin, eds.). CRC Press, Boca Raton, Florida, 416 pp.
Pedigo L.P., Buntin G.D. 1994. Handbook of Sampling Methods for Arthropods in Agriculture. CRC Press, Boca Raton, Florida, 416 pp.
Pedigo L.P., Zeiss M.R. 1996. Analysis in Insect Ecology and Management. Iowa State University Press, Ames, 168 pp.
Rajabi Gh. 2003. Insect Ecology (for Iran condition and applied aspects). Final Report. Agricultural Research and Education Organization of Iran, Tehran, 95 pp.
Sengonca C., Feber T. 1996. Studies on developmental stages of the horse chestnut scale insect, Pulvinaria regalis Canard, in the open land and in the laboratory. Anzeige für Schädlingskunde 69 (3): 59–63.
Southwood T.R.E. 1995. Ecological Methods, With Particular Reference to the Study of Insect Population. Chapman and Hall, London, 524 pp.
Southwood T.R.E., Henderson P.A. 2000. Ecological Methods. 3rd ed. Blackwell Sciences, Oxford, 592 pp.
Tatara A. 1987. Spatial distribution of four homopterous pests in an uncontrolled Satsuma mandarin grove at Shimizu, Shizuka prefecture, with special reference to the factor in the outbreak of two of them, citrus cottony scale and citrus whiterfly. Bulletin of the Shizuoka Prefectural Citruse Experiment Station 23: 15–29.
Taylor L.R. 1961. Aggregation, variance and the mean. Nature 189 (4766): 732–735.
Young L.J., Young L.H. 1998. Statistical Ecology. Kluwer Academic Pub, Boston, 565 pp.