Krsteska, Vesna and Lazarevska, Stanislava and Srbinoska, Marija and Pelivanoska, Valentina (2022) Dynamics of the aphid population on tobacco in Prilep region. Proceedings of IV. International agricultural, biolgical & life science conference, Agbiol – 2022. pp. 202-208.
Full text not available from this repository. (Request a copy)Abstract
Leaf aphids are among the most important pests on tobacco. They directly affect tobacco yield
and quality. Investigation was carried out in 2017-2021 on tobacco plants in Prilep, by
application of Method of survey of 20 randomly selected tobacco stalks infested with
aphids. During the summer 2017-2021, aphids developed many parthenogenic generations of
apterous aphids on tobacco, which depends primarily on temperature fluctuations and
precipitation, as well as on the physiological state of the plant and soil nitrogen
fertilization. Aphid infestations were often found first along the field margins nearest the
direction of prevailing winds. Aphid colonization begins with the movement of few winged
females into tobacco fields that give birth to live nymphs. These offspring will become mature,
wingless aphids that in turn will deposit more live nymphs and make collonies on top tobacco
leaves and flowers. M. persicae was present on tobacco plants from the beginning of July until
the end of October. Following the dynamics of the aphid population in Prilep region in 2017-
2021, the most intensive attack of aphids on tobacco occurs in August. The maximum incidence
of aphids was on the 10th of August 2017, on the 20th of August 2018-2020 and on the 1st of
August 2021, when aphids form large, dense colonies at the growing points. On the examined
stalks, in 2017 were observed 70.707 aphids, 48.527 in 2018, 54.036 in 2019, 59369 in 2020
and 20738 aphids in 2021.
| Item Type: | Article |
|---|---|
| Subjects: | Scientific Fields (Frascati) > Agricultural Sciences > Agricultural biotechnology |
| Divisions: | Scientific Tobacco Institute |
| Depositing User: | Prof d-r. Vesna Krsteska |
| Date Deposited: | 26 Dec 2023 11:19 |
| Last Modified: | 26 Dec 2023 11:20 |
| URI: | https://eprints.uklo.edu.mk/id/eprint/8739 |
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