Evaluation of Application Effect of Green Pest Control Technique in Apple Orchard

MA Jie; WANG Shengqi; HU Tongle; WANG Ya'nan; WANG Shutong; CAO Keqiang

doi:10.15933/j.cnki.1004-3268.2018.12.014

Abstract：In order to reduce the use of chemical pesticides in apple orchards, the systematic test of green prevention and control technology program(GPCTP) was carried out in apple orchards in Baoding and Tangshan from March to October, 2017.The conventional prevention and control program was used as a control(CK).Through systematic monitoring of the occurrence of apple diseases and insect pests in the orchards tested, the effectiveness of two different prevention and control schemes was compared.The results showed that with the purification input level of chemical pesticides at 3.16 kg/ha, 85.19％lower than that of CK, no significant difference in the occurrence degree of apple Alternaria blotch, Aphis ciricolavan der Goot, Lithocolletis rigoniella and fruit diseases between GPCTP and CK was found in Baoding test orchard.The purification input level of chemical pesticides in GPCTP of Tangshan orchard decreased by 36.31％compared with CK, while there was no significant difference in the occurrence degree of apple Alternaria blotch and Aphis ciricolavan der Goot between GPCTP and CK.However, the incidence rates of Lithocolletis rigoniella and fruit red spot disease reached 20.00％and 5.00％respectively, both significantly higher than CK(5.00％and 3.00％respectively).In general, it is feasible to carry out GPCTP in apple orchards, but the orchard with higher incidence of Lithocolletis ringoniella and fruit red spot disease needs further improvement in pesticide selection and timing of application.