Abstract:
Through field experiments for two years and in two areas and through residue analysis,and in the light of standerds of maximum residue limit of agricultural chemical (or tomato recommended by Food and Agricultural Organization of the United Nations and World Health Organization, the technical indices of safe and rational application of Rovral ( 50WP) for controlling tomato Alternaria solani were suggested. The common dosage is 1000-fold formulated solution,and the maximum dosage is 500-fol'd solution. The solution is sprayed 3-5 times and the interval between every two times is 10 days. The safety interval time is 3 clays.
Key words:
Tomato Alternaria solani,
Rovral,
Maximum residue limit,
Safety interval time
Mo Tao, Chen Shuxin, Zhang Shaojun, Wang Li. Technical Indices of Safe Application of Rovral for Controlling Alternaria solani of Tomato[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1993, 8(S1): 115-118. doi: 10.3321/j.issn:1000-7091.1993.z1.024.