Introduction

A summary of recent pesticide registration decisions in China for 2024, focusing on applications that have been rejected by China’s authorities. The overview highlights key products, target crops, and the main reasons for rejection, such as insufficient efficacy data, unclear residue risks, and regulatory non-compliance.

These insights are intended to help pesticide manufacturers and applicants better understand current regulatory requirements and common challenges in the approval process.

Pesticide Registration Information 20, 2024

Registration of the tricyclazole·epoxiconazole (6% epoxiconazole, 24% tricyclazole) suspension for rice sheath blight is rejected.

Registration of the cyantraniliprole oil-dispersible suspension (300 g/L cyantraniliprole) for citrus psyllids and Lactuca sativa var. longifolia American serpentine leafminer is rejected.

Registration of the 36% flumioxazin·glyphosate (0.6% flumioxazin, 35.4% glyphosate) suspension for weeds on paddy field borders is rejected.

Pesticide Registration Information No. 17, 2024

Registration of the thiamethoxam (0.12% thiamethoxam) granule for wheat aphids is rejected.

Registration of the clothianidin (0.1% clothianidin) granule for wheat aphids is rejected.

Registration of the 30% metalaxyl-M·hymexazol (25% hymexazol, 5% metalaxyl-M) soluble solution for rice bakanae disease is rejected. It is understood that the reason is that metalaxyl-M has no activity against the main pathogenic bacteria of rice bakanae disease.

Registration of the 30% glyphosate isopropylamine salt (30% glyphosate) soluble solution for corn fields containing the DBN9936 event glyphosate-tolerant trait is rejected. It is understood that the main reason is an error in the field efficacy test report provided.

Adjustment of the application rate for the 0.3% azadirachtin (0.3% azadirachtin) water-dispersible granule is rejected.

Pesticide Registration Information No. 15, 2024

Registration of the abamectin·spinosad (2% abamectin, 3% spinosad) suspension for fall armyworm on corn is rejected.

Registration of the pyraclostrobin·epoxiconazole (20% pyraclostrobin, 15% epoxiconazole) suspension for wheat rust is rejected.

Pesticide Registration Information No. 12, 2024

Registration of the tricyclazole·epoxiconazole (10% epoxiconazole, 30% tricyclazole) suspension for rice sheath blight is rejected.

Pesticide Registration Information No. 10, 2024

Registration of the prothioconazole·tebuconazole (20% prothioconazole, 20% tebuconazole) suspension for rice blast, rice false smut, and rice sheath blight is rejected.

Registration of the 0.1% forchlorfenuron (0.1% forchlorfenuron) soluble solution for growth regulation in kiwifruit is rejected. The reasons are as follows: 1. The tested and recommended application rate range of the formulation is too broad, requiring further data submission; 2. Residue risks are unclear, and no data support is provided.

Pesticide Registration Information No. 9, 2024

Registration of the chlorantraniliprole (200 g/L chlorantraniliprole) suspension for lawn armyworms is rejected.

Registration of the 25% pyraclostrobin (25% pyraclostrobin) suspension for powdery mildew in honeysuckle is rejected. It is understood that the reason is the inability to verify whether it is a joint trial product for minor crops.

Registration of the 0.36% insecticidal emulsion (0.06% beta-cypermethrin, 0.3% permethrin) for indoor ants is rejected.

Addition of diquat dibromide content in the remarks for the 200 g/L diquat (200 g/L diquat) soluble solution is rejected.

Addition of diquat dibromide content in the remarks for the 150 g/L diquat (150 g/L diquat) soluble solution is rejected. It is understood that diquat refers to diquat dibromide.

Registration of the 30% glyphosate isopropylamine salt (30% glyphosate) aqueous solution for corn fields containing the DBN9936 event glyphosate-tolerant trait is rejected.

Registration of the 30% glyphosate isopropylamine salt (30% glyphosate) soluble solution for corn fields containing the DBN9936 event glyphosate-tolerant trait and the DBN9858 event glyphosate- and glufosinate-tolerant trait is rejected.

Pesticide Registration Information No. 3, 2024

Registration of the 0.1% triacontanol (0.1% triacontanol) microemulsion for growth regulation in apple trees is rejected. It is understood that the reason is that the registration of triacontanol on apple trees falls under a new scope of use, and environmental impact data cannot be exempted.

Registration of the 223 g/L Bordeaux mixture (223 g/L Bordeaux mixture) suspension for rice bacterial leaf streak is rejected. It is understood that the reason is that the control of rice bacterial leaf streak is a new scope of use, and an environmental risk assessment report is missing.

Conclusion

Understanding the common reasons for pesticide registration rejections can help companies better prepare their applications and avoid similar pitfalls. If you encounter any challenges or have questions regarding pesticide registration in China, our team is here to provide expert guidance and support. Please feel free to contact us at [email protected] for tailored solutions and regulatory assistance.