^АВТ: Kanagwa W.; Kilewa R.; Treydte A.C.
^ЗГЛ: Effectiveness of Zygogramma bicolorata as a biocontrol
agent against Parthenium hysterophorus in Arusha, Tanzania
[Оценка эффективности использования листоеда Zygogramma
bicolorata (Coleoptera: Chrysomelidae) в качестве агента
биологической борьбы с партениумом позднеплодным (Parthenium
hysterophorus) в условиях обл. Аруша, Танзания]
^ВЫХ: Biocontrol Science & Technology, 2020; Vol.30,N 8. - P.
^РЕФ: Parthenium hysterophorus is an invasive weed that poses significant threats to crop production, biodiversity, human and animal health. Few experiments have been carried out to test the effectiveness of biological control agents such as the beetle Zygogramma bicolorata against this invasive. We released Z. bicolorata beetles as bio-agent to control P. hysterophorus at the Tropical Pesticides Research Institute in Arusha, Tanzania, across two seasons, from February - July 2019 (wet) and August 2019 - January 2020 (dry). Feeding by Z. bicolorata reduced P. hysterophorus leaves, flowers, height as well as biomass, both in the dry and wet season. During the wet season, 100% of all P. hysterophorus leaves were eaten already 28 days after the onset of the experiment, particularly under the highest beetle population treatment (30 individuals). Parthenium hysterophorus flower numbers were greatly reduced under high beetle populations (30 individuals) compared to the control treatment (0 individuals) during both the wet and dry season. Parthenium hysterophorus height was reduced by 87% and 90% during the wet and dry season, respectively when 30 beetles were released. Similarly, biomass was reduced by 90% and 87% during the wet and dry season, respectively. Parthenium hysterophorus responses to beetle treatments did not differ significantly across seasons but the development of both the invasive and its control, Z. bicolorata, was slightly delayed in the dry season. We conclude that Z. bicolorata can be used as bio-agent to manage P. hysterophorus in Tanzania, particularly when released in large numbers.
^ВИД: Статья из книги
^РУБ: 68_37_33_28; 68_37_33_13_17
^УДК: 632.51; 632.937.12
^ТЕР: СОРНЯКИ (Weeds). ПАРТЕНИУМ. PARTHENIUM HYSTEROPHORUS
[ARGYROCHAETA BIPINNATIFIDA; VILLANOVA BINNATIFIDA;
ПАРТЕНИУМ ПОЗДНЕПЛОДНЫЙ]. БОРЬБА С СОРНЯКАМИ (Weed
control). БИОЛОГИЧЕСКАЯ БОРЬБА (Biological control).
АГЕНТЫ БИОЛОГИЧЕСКОЙ БОРЬБЫ (Biological control agents).
ZYGOGRAMMA BICOLORATA. БИОЛОГИЧЕСКАЯ ЭФФЕКТИВНОСТЬ.
ТАНЗАНИЯ (United Republic of Tanzania).
^РТЗ: ASTERACEAE [COMPOSITAE; АСТРОВЫЕ; СЛОЖНОЦВЕТНЫЕ].
ASTERALES [АСТРОЦВЕТНЫЕ]. CHRYSOMELIDAE [ЛИСТОЕДЫ;
ХРИЗОМЕЛИДЫ]. COLEOPTERA [ЖЕСТКОКРЫЛЫЕ]. PARTHENIUM.
ZYGOGRAMMA. АГРОТЕХНИКА (Cultivation) [ВОЗДЕЛЫВАНИЕ].
АФРИКА (Africa). ВОСТОЧНАЯ АФРИКА (East Africa). МЕТОДЫ
ЗАЩИТЫ РАСТЕНИЙ. НАСЕКОМЫЕ (Insects) [INSECTA]. ПОЛЕЗНЫЕ
ОРГАНИЗМЫ (Beneficial organisms). СТРАНЫ МИРА. УХОД ЗА
РАСТЕНИЯМИ. ЧЛЕНИСТОНОГИЕ (Arthropods) [ARTHROPODA].