Potential of two entomopathogenic fungi, Beauveria bassiana and metarhizium anisopliae as biocontrol agents of Rhpalosiphum padi and Shizaphis graminum, (Homoptera: Aphididae) in laboratory and field
Wheat ( Triticum aestivum L.) is a major staple for the majority of the global population and plays a significant role in economic stability. Being a staple food, it is attacked by various insect pests mainly aphids. Rhpalosiphum padi and Shizaphis graminum are considered serious aphid pests of the...
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Veröffentlicht in: | International journal of tropical insect science 2024-02, Vol.44 (1), p.307-312 |
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Sprache: | eng |
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Zusammenfassung: | Wheat (
Triticum aestivum
L.) is a major staple for the majority of the global population and plays a significant role in economic stability. Being a staple food, it is attacked by various insect pests mainly aphids.
Rhpalosiphum padi
and
Shizaphis graminum
are considered serious aphid pests of the wheat crop. An experiment was conducted to evaluate the insecticidal potential of
Beauveria bassiana
and
Metarhizium anisopliae
against aphid species.
B. bassiana
and
M. anisopliae
were tested at three same dose rates (1.05 × 10
13
, 0.52 × 10
13
and 2.1 × 10
13
conidia /ml) against the aphid species both in laboratory and field settings. Under laboratory conditions,
B. bassiana
and
M. anisopliae
were applied at the same dose rate and data regarding the mortality of insects were recorded after 3, 5 and 7 days. In the field, treatments were applied three times with a 15-day interval between each application.
B. bassiana
@1.05 × 10
13
conidia /ml resulted in maximum mortality against
R. padi
(83.39%) than
S. graminum
(79.36%) under laboratory conditions after a 7-day interval. Similarly, under field conditions, the mortality rates were 69.33% for
R. padi
, and 66.34% for
S. graminum
after the third spray treatment. The results concluded that
B. bassiana
provides more effective control than
M. anisopliae
under both laboratory and natural conditions against
R. Padi
and
S. graminum. |
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ISSN: | 1742-7592 1742-7584 1742-7592 |
DOI: | 10.1007/s42690-024-01160-5 |