Forests (2021) 12 (1 - 58)

Irena Nedveckyte, Dale Peciulyte and Vincas Buda (2021)
Fungi associated with horse-chestnut leaf miner moth Cameraria ohridella mortality
Forests 12 (1 - 58)
Abstract: The total mortality of the leaf-miner horse-chestnut pest, Cameraria ohridella, collected in nature, and the mortality associated with mycoses were assessed under laboratory conditions in stages: for eggs mortality rates of 9.78% and 61.97% were found, respectively; for caterpillars, 45.25% and 5.59%, respectively; and for pupae 21.22% and 100%, respectively. At the egg stage, Cladosporus cladosporioides caused mycosis most often (27% of all mycoses); at the caterpillar stage there was no pronounced predominant fungus species; at the pupal stage both Cordyceps fumosorosea and Beauveria bassiana (32% and 31%, respectively) were most dominant; whereas at the adult stage Lecanicillum aphanocladii (43%) were most dominant. C. ohridella moths remained the most vulnerable during the pupal and caterpillar stages. Maximum diversity of fungi associated with the leaf-miner moth was reached during the period of development inside the chestnut leaf (Shannon–Wiener index—H' = 2.608 at the caterpillar stage, H' = 2.619 at the pupal stage), while the minimum was reached in the adult stage (H' = 1.757). In the caterpillar and pupa stages, saprophytic fungi were most often recorded. Comparative laboratory tests revealed novel properties of the fungus L. aphanocladii, its effectiveness as the leaf-miner moth's entomopathogen and its suitability for field application trials while developing environment-friendly methods for horse-chestnut pest control.
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Full text of article
Database assignments for author(s): Vincas Buda

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
surveys/distribution/isolation

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Cameraria ohridella	Horse-chestnut/buckeye (Aesculus)	Lithuania
Beauveria bassiana (entomopathogen)	Cameraria ohridella		Lithuania
Cordyceps fumosorosea (entomopathogen)	Cameraria ohridella		Lithuania