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Sublethal effects of some synthetic and botanical insecticides on Bemisia tabaci (Hemiptera: Aleyrodidae)

100%

Esmaeily S., Samih M. A., Zarabi M., Jafarbeigi F.

Journal of Plant Protection Research

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2014

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tom 54

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nr 2

In addition to direct mortality caused by insecticides, some biological traits of insects may also be affected by sublethal insecticide doses. In this study, we used the age-stage, two-sex life table method to evaluate the sublethal effects of the four synthetic insecticides: abamectin, imidacloprid, diazinon, and pymetrozin as well as the botanical insecticide taken from Calotropis procera (Asclepiadaceae) extract, on eggs of the cotton whitefly, Bemisia tabaci (Hem.: Aleyrodidae). The lowest and highest survival rates and oviposition periods were observed in whiteflies treated by diazinon and imidacloprid, respectively. We found significant differences in the net reproductive rate (R0), the intrinsic rate of increase (r), the finite rate of increase (?), and the gross reproductive rate (GRR) among different insecticides. Altogether, our results showed that pymetrozin and C. procera induced the most sublethal effects, thus they may be suitable candidates for use in integrated pest management programs of B. tabaci.

2

Non-chemical control of some important pests of sweet cherry

80%

Andreev R., Kurtinkova H., Baltas K.

Journal of Plant Protection Research

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2008

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tom 48

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nr 4

503-508

Some non-chemical insecticides were tested for efficacy of control of fall webworm, Hyphantria cunea (Drury), and of cherry weevil, Rhynchites auratus (Scop.) in the laboratory and black cherry aphid, Myzus cerasi (Fabr.) under field conditions. Hendreson & Tilton formula was applied for evaluation of efficacy. NeemAzal T/S (azadirahtin) at the concentration 0.5% and Naturalis (Beauveria bassiana) used at 0.2% or 0.3% have shown the best results against black cherry aphid. Good results were also obtained with Pyrethrum FS (pyrethrin + sesame oil + soft potassium soap) used at 0.05% or 0.1%, with NeemAzal T/S at 0.3%, PreFeRal WG (Paecilomyces fumosoroseus) at 0.2% and with Naturalis at 0.1%. The effect of PreFeRal WG, applied at 0.1% was unsatisfactory. Against the fourth instar larvae of fall webworm, excellent results were noted for Pyrethrum (0.05% and 0.1%) and Naturalis (0.1% and 0.2%). Very good effects were also obtained with the BMP 123WP (Bacillus thuringiensis), used in concentration of 0.1%. NeemAzal T/S - 0.5% had still good, albeit lower, efficacy. Against the cherry weevil only Pyrethrum FS was tested. This insecticide resulted in a very good efficacy, when used at the concentration 0.1% and still satisfactory - at 0.05%.

3

The importance of natural products in insect control

61%

Ujvary I.

Pestycydy

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2005

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nr 3

21-37

Ograniczanie wyników

2 Journal of Plant Protection Research

1 Pestycydy

1 Andreev R.

1 Baltas K.

1 Esmaeily S.

1 Jafarbeigi F.

1 Kurtinkova H.

1 Samih M. A.

1 Ujvary I.

1 Zarabi M.

1 2014

1 2008

1 2005

Sublethal effects of some synthetic and botanical insecticides on Bemisia tabaci (Hemiptera: Aleyrodidae)

Non-chemical control of some important pests of sweet cherry

The importance of natural products in insect control