An attempt to control Cameraria ohridella using an attract-and-kill technique

Abstract

This study estimates the efficacy of an attract-and-kill (A&K) technique to control the horse chestnut leaf miner, Cameraria ohridella Deschka and Dimic (Lepidoptera, Gracillariidae), an invasive insect pest of the horse chestnut, Aesculus hippocastanum L. (Hippocastanaceae). The A&K formulation was dispensed as 50 μl droplets of paste-like matrix, containing C. ohridella sex pheromone, (8E,10Z)-tetradeca-8,10-dienal (85% + pure; 0.16% w/w) and a fast acting contact toxicant, pyrocides (94% pure; 6% w/w), applied directly to the bark of the trees. It was tested in 2003 at rates of 30 and 45 droplets/tree at the Ostrobramska site and at rates of 30, 60 and 90 droplets/tree at the Woloska site in Warsaw, Poland, for the first insect generation. A set of untreated plots (0 droplets/tree) was established at each site as well. The treatment efficacy was estimated using two indices: (1) moth catches in pheromone traps and (2) the number of mines per leaf. Trap catches were significantly higher in the untreated plots than in the treated plots regardless of the application rate in all sites. However, there were no significant differences in leaf damage amongst all plots on each site. At the “Lazienki Krolewskie” park the attractiveness of two types of pheromone sources were compared: traps were baited with rubber septum lures or with A&K droplets. The catches of C. ohridella in traps baited with lures were lower than captures in A&K droplet-baited traps, but the difference was not significant. Possible reasons for the low efficacy of the A&K method in management of C. ohridella and reducing leaf damage are discussed.

Spatial variability in the level of infestation of the leaves of horse chestnut by the horse chestnut leaf miner, Cameraria ohridella (Lepidoptera: Gracillariidae) and in the number of adult moths and parasitoids emerging from leaf litter in an urban environment

“…There are several options, pheromone traps (Svatoš et al, 1999(Svatoš et al, , 2009Grodner et al, 2008;Sukovata et al, 2011), spraying trees with pesticides (Perju et al, 2004;Kuldová et al, 2015) and injection of trees with insecticides (Měsić et al, 2008;Kobza et al, 2011).…”

Biological Flora of the British Isles:Aesculus hippocastanum

“…Insecticide implants in trees, such as Acecap, have proved less useful (Krehan, 1997). Glue bands around the trunk to trap adult moths have proved effective if applied every year (Percival, 2016), but pheromone traps have not been found to reduce damage (Sukovata, Czokajlo, Kolk, Ślusarski, & Jabłoński, 2011).…”

Antibacterial and fungicidal activities of ethanol extracts from Cotinus coggygria, Rhus typhina, R. trilobata, Toxicodendron orientale, Hedera helix, Aralia elata, Leptopus chinensis and Mahonia aquifolium

“…This insect pest was listed among the 100 worst invasive species of Europe (Augustin, 2009), and its biology, ecology, physiology, biochemi-stry and effective management are actively studied (Baraniak et al, 2005;Barta, 2018;Holoborodko et al, 2009Holoborodko et al, , 2016Stygar et al, 2010;Rämert et al, 2011;Shupranova et al, 2019). There are known attempts to control the spread of the miner (Kuldová et al, 2007;Sukovata et al, 2011), which unfortunately were not effective enough. Therefore, an alternative approach to the control of miner reproduction using fungal pathogens (entomopathogenic fungi) has been considered in recent years (Schemmer et al, 2016;Barta, 2018).…”