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THE EFFECT OF EUROPEAN RED MITE, PANONYCHUS ULMI (ACARINA: TETRANYCHIDAE), INFESTATIONS ON N, P, AND K CONCENTRATIONS IN APPLE FOLIAGE THROUGHOUT THE SEASON1

Published online by Cambridge University Press:  31 May 2012

H. J. Herbert  and
K. P. Butler
H. J. Herbert
Affiliation:
Research Station, Canada Department of Agriculture, Kentville, Nova Scotia
K. P. Butler
Affiliation:
Research Station, Canada Department of Agriculture, Kentville, Nova Scotia
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Abstract

Seasonal trends of the percentage of nitrogen, phosphorus, and potassium were measured in the foliage of apple trees infested with the European red mite, Panonychus ulmi (Koch), at four population levels created by the action of predators and/or chemical treatment.

It was shown that by early September the concentrations of these nutrients; particularly nitrogen, were significantly depressed by high P. ulmi populations.

Type
Articles
Information
The Canadian Entomologist , Volume 105 , Issue 2 , February 1973 , pp. 263 - 269
Copyright
Copyright © Entomological Society of Canada 1973

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References

Childers, N. F. 1966. Nutrition of fruit crops. Somerset Press, Somerville, N.J.Google Scholar
Emmert, F. H. 1954. The soluble and total phosphorus, potassium, calcium, and magnesium of apple leaves as affected by time and place of sampling. Proc. Am. Soc. hort. Sci. 64: 1–8.Google Scholar
Henderson, C. F. and McBurnie, H. S.. 1943. Sampling technique for determining populations of the citrus red mite and its predators. U.S. Dep. Agric. Circ. 671.Google Scholar
Herbert, H. J. 1970. Biological limits of each stage in populations of the European red mite, Panonychus ulmi (Koch). Can. Ent. 102: 64–68.CrossRefGoogle Scholar
Lefter, G. 1964. The influence of ecological factors on the development and reproduction of spider mites in horticultural crops. Anal. Sect. Prof. Pl. Inst. Cent. Circ. Agric. 2: 307–318.Google Scholar
Lord, F. T. and Stewart, D. K. R.. 1961. Effects of increasing the nitrogen level of apple leaves on mite and predator populations. Can. Ent. 93: 924–927.CrossRefGoogle Scholar
Mathys, G., Baggiolini, M., and Stahl, J.. 1968. The influence of pesticides and fertilizers on the behaviour of phytophagous mites in orchards and under laboratory conditions. Entomophaga 13: 357–372.CrossRefGoogle Scholar
Post, A. 1962. Effect of cultural measures on the population density of the fruit tree and red spider mite, Metatetranychus ulmi Koch (Acari, Tetranychidae). Tijdschr. PlZiekt. 68(4): 1–110.Google Scholar
Rodriquez, J. C. 1960. Nutrition of the host and reaction to pests. Biol. Chem. Contr. Pl. Animal Pests: 149–167.Google Scholar
Sanford, K. H. and Herbert, H. J.. 1970. The influence of spray programs on the fauna of apple orchards in Nova Scotia. XX. Trends after altering levels of phytophagous mites or predators. Can. Ent. 102: 592–601.CrossRefGoogle Scholar