Monitoring&Biological Control And Mechanism Of Protein Bait Of Oriental Fruit Fly, Bactrocera Dorsalis (Hendel)

1Mechanism of Protein Bait with oriental fruit flyStudy showed the mechanism of the oriental fruit fly through the role of Protein Bait in itsphysiological and biochemical effects. Protein Bait could significantly reduce the male and femaleadult oriental fruit fly longivity expectancy (mortality14.44%) and fecundity significantly reduced(30) with no hatching. Fed Protein Bait made oriental fruit fly sperm length (128.846um) wassignificantly shorter than artificial food (141.425um). Protein Bait was no impact on oriental fruitfly ovary length and width. Oriental fruit fly fed with Protein Bait could effectively reduce thea-amylase (1.97), the activity of lipase (19.32) and protease (28.87), which may be caused by thelack of a small oriental fruit fly nutrition, and thus resulting in reduced life.2Field population dynamics of oriental fruit flyMonitoring field population dynamics of oriental fruit fly Bactrocera dorsalis(Hendel) inWusi Farm, Changtai, Zhangzhou,2007-2010, there was a highest-population point between Mayand June. It was caused by pupae emergency which survived in the soil. There were twohighest-population points in general orange garden and only one in serotinous orange garden andshaddock garden. It explained the second point was related to the maturity of crops. Using Proteinbait could monitor female oriental fruit fly and there was no obvious difference between male andfemale (Oct5,7.8/trap). That showed that female dynamics could act as monitor methods oforiental fruit fly. Founded model ARIMA(1,0,3):x_t=0.57x_t-1+(0.278) w_t-1+(0.406) w_t-2+(-0.296)w_t-3.And the trend variation of fit value of the model were as same as original data. The original datalocated in the95%confidence. It was found that prediction accuracy decreased and95%confidence were broadened as the prediction ex_tended.3Biological control on oriental fruit fly Male annihilation was launched in general orange garden in2008, Wusi Farm. There were twohighest-population points in test field but only one in CK field.11.6/trap was found in test fieldand96.0/trap in CK field, Sep26.Best proportion of Protein bait, GF-120mixed with water were1:4. The effect of Protein baitwas better than GF-120(94:67).Parasitic rate of oriental fruit fly by Fopius arisanus (Sonan) parastited was between36.2%-46.1%and highest62.2%lowest23.3%.Infested fruits were clear and checked and was found50%damages was caused by oriental fruitfly. Sanitation in the field at the end of2009reduced the population of oriental fruit fly in2010(28.0/trap2009April-May,10.0/trap2010April-May).Biological control was made in Wusi Farm from September to November,2009. Damage rateby oriental fruit fly in shaddock garden was average3.20%(average) and5.88%(highest).Damage rate in CK shaddock garden was26.88%(average) and34.15%(highest). Damage rateby oriental fruit fly in general orange garden was average0.47%(average) and1.03%(highest).And damage rate in CK general orange garden was11.53%(average) and13.89%(highest).