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ABAMECTINO TOKSIÐKUMAS RAUDONOSIOMS<br />
SODINËMS ERKËMS PANONYCHUS ULMI<br />
(ACARI: TETRANYCHIDAE) OBELYSE<br />
L. Raudonis<br />
Santrauka<br />
2005–2006 m. t<strong>ir</strong>tas abamectino 18 g l -1 poveikis <strong>ir</strong> toksiðkumas raudonosioms sodinëms<br />
erkëms (Panonychus ulmi Koch) obelyse. Abamectino 18 g l -1 27 g v.m. ha -1 <strong>ir</strong><br />
18 g v.m. ha -1 normos buvo labai toksiðkos (toksiðkumas – nuo 92,9 iki 99,0 proc.)<br />
þemuoginëms erkëms, praëjus 2–5 <strong>ir</strong> 7 d., bei vidutiniðkai <strong>ir</strong> labai toksiðkos (toksiðkumas<br />
– nuo 54,4 iki 89,7 proc.), praëjus 31 d. po purðkimo. Abamectino 18 g l -1<br />
13,5 g v.m. ha -1 norma buvo labai toksiðka (toksiðkumas – 89,0–91,4 proc.) erkëms,<br />
praëjus 2–5 <strong>ir</strong> 7 d., <strong>ir</strong> tik vidutiniðkai toksiðka (toksiðkumas – 51,1–62,4 proc.), praëjus<br />
31 d. po purðkimo. Sp<strong>ir</strong>odiclofeno 240 g l -1 96,0 g v.m. ha -1 norma buvo labai toksiðka,<br />
praëjus 2–5, 7 <strong>ir</strong> 31 d. po purðkimo, <strong>ir</strong> ilgai apsaugojo obelis nuo erkiø. Lambdacihalotrino<br />
50 g l -1 <strong>25</strong>,0 g v.m. ha -1 norma buvo labai toksiðka erkëms, praëjus 2–5 <strong>ir</strong><br />
7 d., taèiau netoksiðka ar tik vidutiniðkai toksiðka, praëjus 31 d. po purðkimo.<br />
Reikðminiai þodþiai: abamectinas, normos, obelys, Panonychus ulmi, toksiðkumas.<br />
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