Theoretical Study On Plant Protection Technology And Its Application In Ecological Tea Garden

China is a big country of tea production and consumption.Tea industry is an important livelihood industry in China,which plays an important role in promoting rural economic prosperity and increasing farmers’ income.For a long time,pest control in tea production in China has been heavily dependent on chemical pesticides,resulting in excessive pesticide residues in tea,which has an impact on people’s health.At the same time,China’s tea export faces serious green trade barriers,which seriously hinders the healthy and sustainable development of China’s tea industry.Green tea production is the only way to reduce pesticide residues in tea,improve tea quality,break green trade barriers and realize the healthy and sustainable development of my country’s tea industry.The key to green tea production is to rely on green prevention and control technology to prevent and control tea garden pests.Under the framework of ecological control in Jiangsu Tea Expo Garden,this study studied the control effects of insect trap lamps and sticky insect boards through field experiments.The results showed that insecticidal lamps were effective against noctuids and tea The control effect of looper and leaf beetle is the best;the armyworm color board,leafhoppers and thrips are the best;the implementation of the trap lamp and the armyworm board and other green prevention and control matching can significantly improve the quality and economic benefits of tea.The specific results are as follows:1.Effect of solar lamp on pest control in tea garden(1)The total control effect on noctuid moth was the bestAmong the five indexes constructed,four indexes rank in the front row.In 2018 and2019,the total number of insect population trapped by single trap lamp was 2812 and 2460,accounting for 38.31% and 40.08% of the total number of trapped insects,respectively %The results showed that the stability of trapping effect was 3 months(August,September and October),and the year-on-year decrease rates were 6.80%,7.45% and 6.40%,respectively;the slow rising point of trapping and persistent Spodoptera exigua appeared inJuly,and the slow rising point appeared late;the trapping potential ranked first,the monthly growth rate was positive for 3 months,and the monthly growth rates in June,July and August were 1.86,0.52 and 0.10,respectively.(2)The total effect on tea geometrid was outstandingAmong the five indexes of total control effect,three indexes of tea geometrid were listed on the list.The stable period of trapping effect was 2 months(May and June);among the indicators of continuous effect,tea geometrid appeared in two consecutive months from May to June,with a year-on-year decrease rate of 31.63% and 52.63%;the monthly growth rate of trapping potential was positive for three months,and the monthly growth rate was0.19,1.00 and 0.29 in June,July and August.(3)The total control effect was similar to that of other speciesAmong the 5 indexes of the total control effect of leaf beetles,2 of them are in the forefront.In 2018 and 2019,the total number of trapping and killing by single lamp was1506 and 1127 respectively,accounting for 18.36% and 20.51% of the total number of trapped insects,ranking the second in the annual indicators of trapping and killing;the slowing point of the rising trend of the trapping efficiency appeared in July,and the turning point of the rising trend was late.2.Control effect of armyworm color board on pests in tea gardenThe control effect of armyworm board was the best among cicadas(42.80%)and thrips(42.29%),followed by whiteflies(30.97%).At the same time,the number of natural enemies was affected by armyworm board.3.Green prevention and control technology to enhance the comprehensive benefits of tea gardenThe net income per unit area of tea garden managed by green prevention and control technology was compared with that of traditional pesticide control management.The results showed that the output value of the former per unit of area was increased by 1250 yuan compared with that of the latter.At the same time,the comprehensive labor saving rate was29.46%.Meanwhile,the comprehensive investment cost of the former was reduced by 95 yuan per unit of area compared with the latter.Finally,the use of green control per unit areawas calculated.Compared with the traditional pesticide control management,the comprehensive net income of tea garden managed by control technology can increase by1345 yuan per unit of area,and the application of green prevention and control technology can greatly improve the economic benefits of tea garden.The results of this study provide theoretical support for the development of green prevention and control technology system and new green prevention and control technology and equipment.