Journal of Zhejiang Agricultural Sciences ›› 2025, Vol. 66 ›› Issue (4): 986-991.DOI: 10.16178/j.issn.0528-9017.20240067
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LUO Qin1(), YAO Xiaoming2, SHOU Menghui1, ZHOU Yujie1,*()
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Abstract:
In order to clarify the role of adjuvants in the control of rice diseases and insect pests by spraying drone five adjuvants, including Huoniu, Huainongte, Jiexiaoli, Jijian and Yafeng were selected to evaluate the control effect of "three pests and two diseases" such as rice planthopper and Chilo suppressalis. The results showed that adding 30 mL Huainongte, 30 mL Jiexiaoli or 15 mL Jijian per 667 m2 could improve the control effect of rice planthopper, Chilo suppressalis, Cnaphalocrocis medinalis, and Ustilaginoidea virens. The control effects of rice planthopper after 20 days of two times of spraying were 97.09%, 97.74% and 97.51%, respectively, which were 2.02, 2.67, and 2.44 percentage points higher than the single use of the insecticide. The control effects of Chilo suppressalis were 73.88%, 70.99% and 73.81%, respectively, which were 6.17, 3.28 and 6.10 percentage points higher than the single use of the insecticide. The control effects of Cnaphalocrocis medinalis were 88.99%, 88.43% and 89.06%, respectively, which were 1.09, 0.53 and 1.16 percentage points higher than the single use of the insecticide. The control effects of Ustilaginoidea virens were 86.21%, 85.93% and 88.26%, respectively, which were 0.36, 0.08 and 2.41 percentage points higher than the single use of the fungicide. However, there was no significant difference between the control effects of the above three adjuvants and the single use of the insecticide or fungicide. When adding 10 mL of Huoniu, 30 mL of Huainongte or 10 mL of Yafeng per 667 m2 for Thanatephorus cucumeris, the control effects were 76.53%, 74.11% and 73.75%, respectively, which were 2.94, 0.52 and 0.16 percentage points higher than those of the single use of the fungicide, but there was no significant difference between them. In conclusion, the adjuvants can improve the prevention and control effect of spraying drone on rice diseases and insect pests to a certain extent, but the effect is not significant on the basis of spraying spraying drone 2 L per 667 m2.
Key words: adjuvant, spraying drone, rice diseases and insect pests, control effect
CLC Number:
S482.92
LUO Qin, YAO Xiaoming, SHOU Menghui, ZHOU Yujie. Evaluation of different adjuvants on the control effect of rice diseases and insect pests by spraying drone[J]. Journal of Zhejiang Agricultural Sciences, 2025, 66(4): 986-991.
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URL: http://www.zjnykx.cn/EN/10.16178/j.issn.0528-9017.20240067
http://www.zjnykx.cn/EN/Y2025/V66/I4/986
Table 1 Control effect of different adjuvants on rice planthopper (after the first application) 单位:%
Table 2 Control effect of different adjuvants on rice planthopper (after the second application)单位:%
Table 3 Control effect of different adjuvants on Chilo suppressalis 单位:%
Table 4 Control effect of different adjuvants on Cnaphalocrocis medinalis 单位:%
Table 5 Control effect of different adjuvants on Thanatephorus cucumeris
Table 6 Control effect of different adjuvants on Ustilaginoidea virens
), YAO Xiaoming2, SHOU Menghui1, ZHOU Yujie1,*(