Control Effects of Different Chemicals on Underground Pests of Sweet Potato

doi:10.11924/j.issn.1000-6850.casb2023-0450

Abstract

Abstract:

In order to study the effect of different application rates (60kg/hm², 75kg/hm², 90kg/hm²) of thiamethylamine, Metarhizium anisoplariae, phoxium phoxium, Beauveria bassiana and other agents on the control of underground pests of sweet potato, the sweet potato ‘Yanshu 25’ was used as the test material and suitable insecticides and application dosage of underground sweet potato pests were screened in Zhengzhou and Hebi of Henan Province. The results showed that the control effects of the four agents were similar in Zhengzhou and Hebi. The suitable chemical agent was 0.5% thianidin 90 kg/hm², the highest control effect and commercial rate were 86.67% and 92.63%, and the yield of fresh potato increased by 14.95% compared with the control. The application amount of Metarhizium anisopliae 200 million/g was 75 kg/hm², and the control effect was good, the highest control effect and commercial rate were 77.85% and 91.45%, and the yield of fresh potato increased by 9.52% compared with control. The control effect of Beauveria bassiana 15 billion/g and 75 kg/hm² was better, the highest control effect and commercial rate were 78.03% and 91.76%, and the highest yield increase of fresh potato was 10.86% compared with control. The chemical clothianidin and the biological agents Metarhizium anisopliae and Beauveria bassiana have good control effect on the underground pest of ‘Yanshu 25’, which are suitable for demonstration and popularization in sweet potato planting.

Key words: sweet potato, underground pests, medication, prevention and control effect

ZUO Hongjuan, CAO Hui, HUANG Songbo, ZHANG Lipeng, WANG Wei, ZHANG Xiaoshen. Control Effects of Different Chemicals on Underground Pests of Sweet Potato[J]. Chinese Agricultural Science Bulletin, 2023, 39(32): 145-149.

Figures/Tables 3

References 26

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处理	调查总薯块数/块	虫咬率/%	防治效果/%	商品率/%	鲜薯产量/(kg/hm²)	增产率/%
A	847	20.01b	33.85h	90.12e	24158j	3.70h
B	853	9.87g	67.37c	90.26e	24845f	6.64de
C	851	9.81g	67.57c	91.56b	24911e	6.93d
D	849	13.94e	53.92e	90.64d	24384i	4.67h
E	848	10.21f	66.25d	91.53b	25706b	10.34b
F	852	5.09i	83.17a	92.71a	26412a	13.37a
G	842	17.92d	40.76f	89.01g	23972k	2.90i
H	847	14.02e	53.65e	89.79f	24471h	5.04g
I	849	10.13f	66.51d	91.23c	24884e	6.81d
J	843	18.93c	37.42g	90.02e	24561g	5.43f
K	846	9.65h	68.10b	90.87d	25197d	8.16c
L	848	9.59h	68.29b	91.76b	25254c	8.40c
M(CK)	845	30.25a	-	83.67h	23297l	-

处理	调查总薯块数/块	虫咬率/%	防治效果/%	商品率/%	鲜薯产量/(kg/hm²)	增产率/%
A	847	20.01b	33.85h	90.12e	24158j	3.70h
B	853	9.87g	67.37c	90.26e	24845f	6.64de
C	851	9.81g	67.57c	91.56b	24911e	6.93d
D	849	13.94e	53.92e	90.64d	24384i	4.67h
E	848	10.21f	66.25d	91.53b	25706b	10.34b
F	852	5.09i	83.17a	92.71a	26412a	13.37a
G	842	17.92d	40.76f	89.01g	23972k	2.90i
H	847	14.02e	53.65e	89.79f	24471h	5.04g
I	849	10.13f	66.51d	91.23c	24884e	6.81d
J	843	18.93c	37.42g	90.02e	24561g	5.43f
K	846	9.65h	68.10b	90.87d	25197d	8.16c
L	848	9.59h	68.29b	91.76b	25254c	8.40c
M(CK)	845	30.25a	-	83.67h	23297l	-

处理	调查总薯块数/块	虫咬率/%	防治效果/%	商品率/%	鲜薯产量/(kg/hm²)	增产率/%
A	852	21.56b	53.75i	89.71e	24029k	5.02j
B	849	10.34g	77.77b	90.23d	24948f	9.04e
C	853	10.30g	77.85b	91.45b	25059e	9.53d
D	843	14.65e	68.50f	90.36d	24235j	5.93i
E	846	10.38g	77.68c	91.45b	25602b	11.90b
F	851	6.21h	86.67a	92.63a	26301a	14.95a
G	841	18.17d	60.93g	88.24f	23856l	4.27k
H	849	14.25e	69.36e	89.68e	24320i	6.29h
I	852	11.36f	75.58d	91.34bc	24803g	8.40f
J	840	20.13c	56.72h	89.83e	24413h	6.70g
K	845	10.26g	77.94b	90.41d	25197d	10.41c
L	846	10.21g	78.03b	91.62b	25364c	10.86c
M(CK)	843	46.51a	-	76.25g	22880m	-

处理	调查总薯块数/块	虫咬率/%	防治效果/%	商品率/%	鲜薯产量/(kg/hm²)	增产率/%
A	852	21.56b	53.75i	89.71e	24029k	5.02j
B	849	10.34g	77.77b	90.23d	24948f	9.04e
C	853	10.30g	77.85b	91.45b	25059e	9.53d
D	843	14.65e	68.50f	90.36d	24235j	5.93i
E	846	10.38g	77.68c	91.45b	25602b	11.90b
F	851	6.21h	86.67a	92.63a	26301a	14.95a
G	841	18.17d	60.93g	88.24f	23856l	4.27k
H	849	14.25e	69.36e	89.68e	24320i	6.29h
I	852	11.36f	75.58d	91.34bc	24803g	8.40f
J	840	20.13c	56.72h	89.83e	24413h	6.70g
K	845	10.26g	77.94b	90.41d	25197d	10.41c
L	846	10.21g	78.03b	91.62b	25364c	10.86c
M(CK)	843	46.51a	-	76.25g	22880m	-