Effect of 0.5% abamectin liquid fertilizer on tomato root-knot nematode disease and growth promotion

doi:10.16178/j.issn.0528-9017.20230544

Abstract

Abstract:

Abamectin is a hexadecyclic macrolide compound with insecticidal, acaricidal and nematicidal activities, which has the characteristics of novel structure, dual use of agriculture and livestock, slow production of resistance, contact killing, stomach toxicity, strong penetration, no teratogenic, carcinogenic and mutagenic effects, and is one of the most popular products in the current biopesticide market. In order to explore the application technology of 0.5% avermectin liquid fertilizer on tomato root-knot nematode disease resistance and its growth-promoting technology, 0.5% avermectin liquid fertilizer was prepared into different concentration solutions, and the activity of nematodes inhibition was measured in the laboratory, and the potted tomatoes were washed to observe and record the occurrence of tomato root-knot nematode disease and the changes of agronomic traits. Studies have shown that 0.5% avermectin liquid fertilizer has the ability to knock down and kill root-knot nematodes. When diluted 800 times, the indicators of tomato agronomic traits reached the highest. Therefore, it is recommended to use 0.5% avermectin liquid fertilizer with a concentration of 800 times dilution, and the tomato has the best effect on root-knot nematode disease and growth.

Key words: avermectin, liquid fertilizer, tomato, root-knot nematode

CLC Number:

S436.412

SHEN Xingming, WANG Na, REN Shiwei, YU Dazhao, LIU Cunping, ZHNE Lei, CHEN Hongkun, ZHANG Xiangmin. Effect of 0.5% abamectin liquid fertilizer on tomato root-knot nematode disease and growth promotion[J]. Journal of Zhejiang Agricultural Sciences, 2024, 65(5): 1194-1197.

Figures/Tables 4

References 17

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稀释倍数	根结百分率/%	根结减少率/%	根结指数	相对防效/%
对照	78.23 d	0	93.53 d	0
2 000	64.61 c	17.41	80.60 c	13.82
1 500	48.33 b	38.22	68.00 b	27.30
1 000	34.33 a	56.12	49.67 a	46.89
800	28.33 a	63.78	45.53 a	51.32
500	26.00 a	66.76	43.63 a	53.35
300	20.26 a	74.10	38.03 a	59.34

稀释倍数	根结百分率/%	根结减少率/%	根结指数	相对防效/%
对照	78.23 d	0	93.53 d	0
2 000	64.61 c	17.41	80.60 c	13.82
1 500	48.33 b	38.22	68.00 b	27.30
1 000	34.33 a	56.12	49.67 a	46.89
800	28.33 a	63.78	45.53 a	51.32
500	26.00 a	66.76	43.63 a	53.35
300	20.26 a	74.10	38.03 a	59.34

稀释倍数	叶绿素含量		株高		茎粗		茎叶干重		花果数
稀释倍数	SPAD值	增长率/ %	株高/ cm	增长率/ %	茎粗/ mm	增长率/ %	茎叶干重/g	增长率/ %	花果数	增长率/ %
对照	40.43 e	0	60.20 e	0	6.00 e	0	9.05 f	0	4.00 d	0
2 000	41.17 d	1.83	60.53 d	0.55	6.16 d	2.67	9.12 e	0.77	4.33 c	8.25
1 500	42.03 c	3.96	62.33 c	3.54	6.22 c	3.67	9.37 d	3.54	4.67 b	16.75
1 000	43.03 b	6.43	64.33 b	6.86	6.23 b	3.83	9.85 b	8.84	4.67 b	16.75
800	44.57 a	10.24	65.33 a	8.52	6.36 a	6.00	10.23 a	13.04	5.33 a	33.25
500	42.63 c	5.44	64.40 b	6.98	6.25 b	4.17	9.51 c	5.08	4.35 c	8.75
300	42.33 c	4.70	64.10 b	6.48	6.20 b	3.33	9.55 c	5.52	4.33 c	8.25

稀释倍数	叶绿素含量		株高		茎粗		茎叶干重		花果数
稀释倍数	SPAD值	增长率/ %	株高/ cm	增长率/ %	茎粗/ mm	增长率/ %	茎叶干重/g	增长率/ %	花果数	增长率/ %
对照	40.43 e	0	60.20 e	0	6.00 e	0	9.05 f	0	4.00 d	0
2 000	41.17 d	1.83	60.53 d	0.55	6.16 d	2.67	9.12 e	0.77	4.33 c	8.25
1 500	42.03 c	3.96	62.33 c	3.54	6.22 c	3.67	9.37 d	3.54	4.67 b	16.75
1 000	43.03 b	6.43	64.33 b	6.86	6.23 b	3.83	9.85 b	8.84	4.67 b	16.75
800	44.57 a	10.24	65.33 a	8.52	6.36 a	6.00	10.23 a	13.04	5.33 a	33.25
500	42.63 c	5.44	64.40 b	6.98	6.25 b	4.17	9.51 c	5.08	4.35 c	8.75
300	42.33 c	4.70	64.10 b	6.48	6.20 b	3.33	9.55 c	5.52	4.33 c	8.25