对河口县柑橘产业近几年来的发展现状和存在问题进行分析.针对在柑橘产业发展中存在的品种结构不合理、技术服务体系不健全、种植管理技术缺乏等问题,提出加快品种结构调整、加强产业服务队伍、建设、加强柑橘生产基地设施建设、加快龙头企业发展、加快市场营销体系建设等对策措施,旨在为发展河口柑橘产业提供参考.

In this paper, we review the cultivation and development progress of the characteristics and advantages of Arabica coffee industry in Hekou of Yunnan, analyze the superiority and inferiority of this industry, and point out the main problems in developing. Then, we put forward some concrete suggestions for its further development.

High quality and high yield of the new banana variety 'Hongyan 1' was contrasted with the domestic main planting varieties in resent years.The result showed that the average fruit quality of all varieties for three years were that 'Hongyan 1'=23.52 kg 'Brazil banana'(CK)=23.06 kg 'Williams 8818'(CK)=22.99 kg 'Zhangzhou 1'(CK)=22.79 kg,but all did not reach significant level(P0.05).Furthermore,other main characteristics were tested,which would have a positive influence on the production and utilization of 'Hongyan 1'.

The biological characteristics of Basilepta fulvipes were studied by laboratory breeding and field investigations.Larva of B.fulvipes could be observed to overwinter in soil and pupate during late March with 3 generations and overlapping generation each year in Hekou,Yunnan province.The eggs were laid in surface soil and old leaves,mostly together.The numbers of eggs were from 6 to 30,maximum to 60.The eggs began to hatch after 7.95 days,the last after 12.54 days.

We established regression equation based on the investigation on the site, practical interviews, data collection and order, the principle of habitat similarity and biological resource developing similarity and climate comparability. Analyzed the climate condition for planting Coffea arabic other than advised on how to move forward.

Occurrence and damage banana Basilepta fulvipes were studied by the methods of fixed monitoring and classification investigate in twelve thousands banana of Hekou.the Results show that the banana was damaged by Basilepta fulvipes year-round but damage peak more than three times each year.That respectively is April to May,July to August and October.Banana is least affected by the Basilepta fulvipes in December to march the next year.From the occurrence and damage extent all area,the banana of eastern is most serious affected by Basilepta fulvipes,followed by western and center south is more lighter than others places.Occurrence and damage banana Basilepta fulvipes are associate with the elevation＇s height and climate factors.The higher elevation,its damage index and damage rate is the lower.In other words,occurrence and damage banana Basilepta fulvipes associate with high temperature and high humidity environment.Control experimental results show that the experimental three insecticides are effective for controlling banana Basilepta fulvipes,45% of mlathion EC of 1000 times is the best.Among the three Insecticides,insecticides may provide a good control effects for Basilepta fulvipes in of banana female flower bloom,otherwise,the control effect may be reduced or control failure.

By the immerse leaf feeding method,toxicity test results of 6 pesticides indicated that they can control B.fulvipes,25% bifenthrin acetamiprid pyridaben EC,25% chlorantraniliprole acetamiprid pyridaben EC,25% chlorfenapyr acetamiprid pyridaben EC,25% Spinosad acetamiprid pyridaben EC had better insectical activities against Basilepta fulvipes Motschulsky,and LC50 values were 23.519 8 mg/L,7.432 3 mg/L,23.602 6 mg/L and 15.977 7 mg/L,respectively.45% Fenpropathrin EC and 20% Fenpr-opathrin EC had lower insectical activities.

Cassavas were introduced and suitability studied in Hekou County of Yunnan Province. Cassava's main characters were determined.The results show that harvest index of the eight cassava varieties respectively is SC10=0.77SC9=0.69SC7=0.68SC5=0.61205=SC6068=0.59SC8=0.54SC6=0.53,and yield per plant is between 10.7and 35.2 kg.Yield per plant of SC10,SC7 and SC6068 is the highest as follow:71kg,48 kg and 47 kg.These results show that these cassavas have a lot space about yield.Starch content of the eight cassava varieties respectively is SC10=28.9 g/100 gC205=23.7 g/100 gSC6068=22.9 g/100 gSC6=21.7 g/100 gSC8=20.8 g/100 gSC7=20.7 g /100 gSC9=18.2 g/100 gSC5=16.6 g/100 g.These research results may stimulate development of Hekou county cassavas industry