Mites associated with egg masses of the viburnum leaf beetle Pyrrhalta viburni (Paykull) on Viburnum tinus L. Author Desurmont, Gaylord A. EBCL USDA ARS, Campus international de Baillarguet, Montferrier sur lez, 34980, France. Author Kerdellant, Elven EBCL USDA ARS, Campus international de Baillarguet, Montferrier sur lez, 34980, France. Author Pfingstl, Tobias Institute of Zoology, Department for Biodiversity and Evolution, University of Graz, Universitätsplatz 2, Author Auger, Phillipe CBGP, INRA, CIRAD, IRD, Montpellier SupAgro, Univ Montpellier, Montpellier, France. Author Tixier, Marie-Stéphane CBGP, Montpellier SupAgro, CIRAD, INRA, IRD, Univ Montpellier, Montpellier, France. Author Kreiter, Serge CBGP, Montpellier SupAgro, CIRAD, INRA, IRD, Univ Montpellier, Montpellier, France. text Acarologia 2019 2019-01-28 59 1 57 72 journal article 8463 10.24349/acarologia/20194311 e58ef0e5-d29e-44f5-ac03-b275ea1010f8 2107-7207 4487683

Table 3 Factors affecting the (a) abundance of mites and (b) diversity of mite morphotypes present on Viburnum tinus twigs infested with Pyrrhalta viburni egg masses (Generalized Linear Model, poisson distribution, α = 0.05) during an observational study (2016). Bold values indicate significant effects.

(a) Mite abundance		df	Χ²-value	P -value
Full model		9, 90	49.77	<0.0001
Effects tested	Site	4	6.03	0.2
	Twig length (cm)	1	4.09	0.04
	Shrub infestation	2	0.91	0.63
	Number of intact egg masses	1	16.22	<0.0001
	Number of damaged egg masses	1	0.37	0.54
(b) Mite diversity		df	Χ²-value	P -value
Full model		9, 90	53.06	<0.0001
Effects tested	Site	5	8.5	0.07
	Twig length (cm)	1	0.77	0.38
	Shrub infestation	2	8.6	0.01
	Number of intact egg masses	1	28.88	<0.0001
	Number of damaged egg masses	1	1.59	0.2