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New Pest Response Guidelines - aphis - US Department of Agriculture

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Survey Procedures<br />

Figure 4-5 Overwintering larva in forest litter. Larva can be found individually or<br />

in groups (Hannes Lemme, Bugwood.org).<br />

Pheromone Traps and Chemical Lures<br />

Dendrolimus pini and Dendrolimus sibiricus<br />

Pheromone traps with chemical lures are the preferred method to monitor adult<br />

populations. Population surveys for adult males should be done during the<br />

season <strong>of</strong> flight activity, normally between mid-summer months between June<br />

and August using pheromone traps or light traps. Pheromone traps and<br />

chemical lures to monitor adult male populations <strong>of</strong> Dendrolimus moths are<br />

commercially available. Delta, tetra, bucket, funnel and Variotrap traps which<br />

were designed to monitor lepidopteran populations are the most commonly<br />

used and are fitted with a lure containing the synthetic pheromone blend<br />

produced by the female moth. The pheromone components included in the lure<br />

are (Z,E)-5,7-Dodecadienal (also Z5,E7-12:Ald) and (Z,E)-5,7-Dodecadien-1ol<br />

(also Z5,E7-12:OH), typically in a 1:1 blend providing the highest capture<br />

rates (Kovalev et al., 1993, Alekseev et al., 2000, Klun et al., 2000; Kong et al.,<br />

2001, Khrimian et al., 2002, Kong et al., 2007, Baranchikov et al., 2007,<br />

Ostrauskas and Ivinskis, 2010). The chemical lures are placed on a rubber<br />

septum and hung inside the trap. A killing agent should be placed in the bottom<br />

<strong>of</strong> any traps to limit escape <strong>of</strong> insects, DDVP is recommended (Jackson,<br />

2011b).<br />

4-10 Dendrolimus Pine Moths 12/2012-01

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