sodininkystė ir daržininkystė 25(4)

AI ha -1 was rated as very toxic to the mites 5 and 7 days after treatment, but nontoxic
31 days after treatment.
Table 6. Effects of Abamectin against fruit tree red spider mite (Panonychus ulmi)
in apple tree site in 2006
6 lentelë. Abamectino poveikis raudonosioms sodinëms erkëms (Panonychus ulmi)
obelyse 2006 m.
Mean number of mites per leaf
Erkës ant lapo, vnt.
2 days 7 days 31 days
Treatments
before
Variantas
after after after
treatment
treatment treatment treatment
prieš
purškim¹
2 d. po 7 d. po 31 d. po
purškimo purškimo purškimo
Untreated / Nepurkšta 5.60 c 5.78 b 5.63 b 5.78 c
Abamectin 18 g l -1 , 27 g AI ha -1 / v.m. g ha -1 4.90 abc 0.21 a 0.22 a 2.10 b
Abamectin 18 g l -1 , 18 g AI ha -1 / v.m. g ha -1 4.95 abc 0.30 a 0.35 a 2.33 b
Abamectin 18 g l -1 , 13.5 g AI ha -1 / v.m. g ha -1 5.35 bc 0.54 a 0.59 a 2.70 b
Lambdacihalotrin 50 g l -1 , 25 g AI ha -1 / v.m. g ha -1 5.50 bc 0.46 a 0.54 a 2.90 b
Spirodiclofen 240 g l -1 , 96 g AI ha -1 / v.m. g ha -1 3.70 a 0.23 a 0.20 a 0.50 a
Table 7. Toxicity of Abamectin to fruit tree red spider mite (Panonychus ulmi)
in apple tree site in 2006
7 lentelë. Abamectino toksiðkumas raudonosioms sodinëms erkëms (Panonychus ulmi)
obelyse 2006 m.
Mortality
Toksiškumas, %
Treatment
2 days after 7 days after 31 days after
Variantas
treatment treatment treatment
2 d. po 7 d. po 31 d. po
purškimo purškimo purškimo
Abamectin 18 g l -1 , 27 g AI ha -1 / v.m. g ha -1 95.8 95.5 58.5
Abamectin 18 g l -1 , 18 g AI ha -1 / v.m. g ha -1 94.1 92.9 54.4
Abamectin 18 g l -1 , 13.5 g AI ha -1 / v.m. g ha -1 90.2 89.0 51.1
Lambdacihalotrin 50 g l -1 , 25 g AI ha -1 / v.m. g ha -1 91.9 90.2 48.9
Spirodiclofen 240 g l -1 , 96 g AI ha -1 / v.m. g ha -1 94.0 94.6 86.9
There were found any statistical differences of the number of strawberry mites
after treatments with different rates of Abamectin 18 g l -1 (Table 6). In contrast to
2005, Abamectin 18 g l -1 , 27 g AI ha -1 and Abamectin 18 g l -1 , 27 g AI ha -1 had lower
affect to the mites 31 days after treatment in 2006. The results show that Abamectin
18 g l -1 , 27 g AI ha -1 was very toxic (mortality – 95.5 and 95.8%) to fruit tree red
spider mite 2 and 7 days after treatment, but only moderately toxic (mortality –
58.5%) 31 days after treatment in 2006 (Table 7). The same toxicity showed Abamectin
18 g l -1 , 18 g AI ha -1 and Abamectin 18 g l -1 , 13.5 g AI ha -1 . Lambdacihalotrin
50 g l -1 , 25.0 g AI ha -1 was very toxic to the mites 2 and 7 days after treatment, but
166