Study On The Species Composition And Control Of Ornamental Trees Pests In Zhejiang Province

In recent years,there has been a sharply increasing in Ornamental trees industry in Zhejiang Province.It is reported the output of Ornamental trees garden value 6.6 billion yuan in 2004,which make up 11%in the output of the entire provincial agriculture.The production of Ornamental trees has become the effective way which the Zhejiang agriculture synergizes and the farmer additionally receives.However,the protection for the ornamental plant in Hewing Province was relatively weak because we still have few knowlegy of the ornamental trees pests on fauna,biology and control technology.Since then,the control of the ornamental tree was ineffective. Furthermore,it has been seriously affected that the Zhejiang ornamental tree industry health development as well as the afforested work result,the development system ornamental tree pests research have been urgent.This research aim to investigate comprehensively main ornamental tree pests in the entire province,and has studied the superiority types occurrence rule and the synthesis preventing and controlling technology.Main research results were as follows:1.During 4 years,it were investigated that of the ornamental tree pest of the main species,the main distribution and the harmful degree.Furthermore,the harmful insect name list and the host spectrum were studied.We altogether gathered each kind of specimen 27,000 in entire province,after the edit appraisal(including material extract),belongs 3 outlines 11 items 88 branches 575 kinds,and is investigating scene photography ecology pictures about 1,500.The primary color ecology picture accurately displays its shape characteristics and the harm shape to the important pest type by the fine forest between,and summarized its classified status,the shape characteristics,the host scope,the cooperation publishes a book″Flowers and Trees Plant Disease to Prevent and Control Colored Descriptive Note″.After the analysis,the pest mostly concentrated on the three orders:Homoptera, Lepidoptera,Coleoptera and so on.The total family of the three orders occupies the total family number 80.1%,the species number occupies always plants the number 90.6%;Homoptera was the most order,altogether investigates the altogether 31 families 368 species,the family,a kind of quantity separately occupies the total branch number and always plants the number 31.5%,63.7%,the second was the Lepidoptera,the altogether 23 families 109 species,plant the number to occupy the complete type 18.9%;for Coleoptera the harmful insect,altogether investigates once more to 46 species,plants the number to occupy the complete harmful insect type 8.0%.According to damages the habit to divide,leaf pest type many,the altogether 388 kinds,next for the food leaf harmful insect,the altogether 132 kinds,drill eat the harmful insect to have 37 kinds,the underground harmful insects are least,only 18 kinds.The definite harmful insect superiority type and carried on has had the rule and the life habit research.According to damages the frequency and the distribution region which the degree,appears Cnidocampa flavescena Walker,Clania variegata Snellen,Orthage aehatina Butler,Calospilos suspecta Warren,Ddiaphania perspectalis Walker,Dendrolimus punctatus Walker,Aphis gossypii Glover,Ceroplastes rubens Maskell,Ceroplastes japonicus Green,Trioza camphorae Sasaki,Stephanitis pyriodes Scott,Tetranychus cinnabarinus Boisduval,Anoplophora chinensis Forst,Monochamusal ternatus Hope,Aromia bungii and so on 15 kinds of harmful insects determinations for the superiority types.Sets up 4 fixed long-term test points to carry on the shape characteristics in the open country to 15 kind of superiority harmful insects to observe and to have the rule research,the observation of primary mass data harmful insect′s year has the algebra, survives the winter and location,harm prime season,harm characteristic situation and so on the insect condition.And has gathered representative superiority harmful insect for example Orthage aehatina Butler,Stephanitis pyriodes Scott,Ceroplastes rubens Maskell,Anoplophora chinensis Forst,the long-horned beetle and so oncarries on in the room to raise,further studies in the localoc currence regularity and the life habit.3.We had the representative species to carry out the control experiment such as leaf pests Orthaga achatina Butler,Dindrolimus punctantus Walker,Tenthredella sp.,sapping pests Ceroplast rubens Maskell,boring pests Anolophora chienensis (Forster),Monchamus alternatus.Test results were as follows:(1)Orthaga achatina Butler annually by the end of September and early October had cocoons resting in the winter.Mature larvae would suffer mass deaths by digging debugging cocoon or tilling the soil under the canopy.This way was effective. Test results showed the effective rate was 65.1%in winter digging,still,the effective rate was 31.5%in spring digging.The control way of artificial nest removal pest show that an average rate of 93.3%nests were dissipated,the highest efficiency was 100%, the lowest 90%.There had an average of only larvae 0.93.Larvae of the average rate of decline was 97.8%.The results had been satisfactory.The choice of 1.8%abamectin EC,the EC chlorfluazuron 5%,5%fipronil.20% diflubenzuron on the 3rd.5 4.5%efficient pesticide apple flavor Orthaga achatina generation larvae in Washington foliar spraying plants for a period of Control.The results showed that the treatment had five good results,with 5%fipronil treatment efficacy was best best Correction Control 94.1%and 5%in 2000-fold chlorfluazuron EC processing times.Washington 2 Orthaga achatina larvae in a period of 50%and 30%fenitrothion EC Acephate EC Solution 1∶1 fold,1∶5 fold camphora tree trunks and smeared in the victim.six of the pest larvae Orthaga achatina decline in the rate of more than 70%,followed effect:50%of the original drug,fenitrothion EC,″50% fenitrothion EC 1:Acephate EC 1＞30%original drug,″30%Acephate EC 1＞50% fenitrothion EC 1∶1∶5″30%Acephate EC 1∶5.Minute by the new Poor Law Duncan multiple comparison analysis shows that 50%fenitrothion EC 1∶1 fold Tu dry most economic control.(2)Caterpillar saved controlling pine-forest effect showed that the first three days after application pest control effect less than 70%.â… deal with powder - which saved 150g/hm² + 35%neutral carrier(powder CaCO₃).9.3 effect of the original dose of 0.05 minimum.â…¡-powder processing were saved 300g/hm² + 35%neutral carrier (powder CaCO₃).9.3 original dose 0.1g;â…¢-dose treatment saved WP +450m² + 35% neutral carrier(powder CaCO₃).But with the original dose was 9.3 0.15g;time of the growth stages,the mortality rate has increased Caterpillar,15d defense achieve maximum efficiency 95.3%.This illustrates the effectiveness of its holders,and the growth trend over time has pharmacodynamics.Taking into account the cost factors, the use of powder processingâ…¡-saved:450g/hm²+35 times Neutral Carrier(powder CaCO₃)this concentration.(3)Sawfly larvae control instant,emulsifiable medicine after two days at the rate of more than 90%,the use of bio-pesticides diflubenzuron on the 3rd,Sen saved medicine 2d emulsifiable rate is only 47.6%and 63.2%,with the extensionsimulated biological pesticides effects are becoming apparent,the 7th day of emulsifiable over 90%;drug test for 12 days after the five pesticides in effect for more than 85%of the osmanthus Sawfly,diflubenzuron on the 3rd emulsion which omethoate emulsion effect of 100%and 40%,a very satisfactory.diflubenzuron agricultural biotechnology drugs and imitation at 3-8d corrected mortality were 100%,98.1%saved.the continued effect of certain biological pesticide.Several chemicals tested showed Omethoate,Ma Ju 20%emulsion of insecticidal effect is better than Pesticides Control.(4)Forest showed that 10%imidacloprid WP 2000-fold,2.5%in 2000 cyhalothrin EC fold.EC-1500-fold and 1.8%abamectin is best saved powder spray control Camellia red wax color correction mortality rates were 90.4%in the first 20 days.77.6%,80.5%,94.7%.After Duncan multiple comparison,we can see the new drug law Poor rehabilitation after 10 days of processing 2.5%cyhalothrin EC.EC 1.8%abamectin and other groups exist to deal with the significant differences after the 20-day drug treatment saved powder handle another very significant difference between the three groups,said Ming saved powder with good results holders.EC cyhalothrin 2.5%,1.8%abamectin EC.WP-security control of Camellia red wax color have good results in prevention should be a nymph period.(5)Forest test showed that 8%of Maple Star Breaking microcapsulesa Jose adult cattle with good results.8%30 days after drug Breaking microcapsulesa Agent 200,400,800 times.Acephate EC 1000,2000 30-fold germari corrected mortality of 88.4%Minute by the new Poor Law 85.5%,74.3%,69.8%;by Duncan multiple comparison,we can see that 8 Breaking microcapsulesa Agent 200.Prevention is better than 30%effective rate of 400-fold Acephate EC 1000,2000 fold.8 Breaking microcapsulesa two water treatment 200,400-fold in the 50d Combat rate is still more than 85%of adults,the results are obvious,long-handled persistence.Taking into account factors such as cost,the proposed use in the production of liquid 400 times for 8%Breaking microcapsulesa Star germari control.Have the stomach to use drugs,tag and phosphorus uptake and distribution role of monocrotophos 40%EC,Maple tree trunks Star injection control 10%Imidacloprid cattle larvae have achieved good results.″Dry″for controlling the spread of Asian Longhorned Beetle larvae,especially tall trees suitable for use under difficult circumstances spray;Injection to accurately control,under normal circumstances,a few days before the trunk injection of adult emergence.Control of adult emergence of winter′s end ultrasonocardiography after hatching,the trunk injection(sooner rather than later).focus on prevention larvae.4.This paper draw conclusions on the integrated pests to control the important species pests,such as the leaf pests,sapping pests,boring pests etc.through years of investigation and control of ornamental tree pests.Landscaping and flowers combine production and the actual situation.At the same time,this paper summed up a user-friendly pest control Zhejiang gardening chronological table in the production units applied made good economic,ecological and social benefits,have important practical significance and value for widespread applicability.