1)Distribution Cosmopolitan quarantine pest; Native to Brazil,currently distributed in over 30 countries; ■ Discovered first in Hainan,China in 1993, spread to 25 provinces now
Cosmopolitan quarantine pest; Cosmopolitan quarantine pest; Native to Brazil, currently distributed in , currently distributed in over 30 countries; over 30 countries; Discovered first in Hainan, China in 1993, Discovered first in Hainan, China in 1993, spread to 25 provinces now. spread to 25 provinces now. 1) Distribution 1) Distribution
2)Damage Polyphagous leafminer. More than 60 species in 19 families recorded in China. Prefer plants,vegetables and flowers in Leguminosae,Cucurbitaceae Solanaceae Cruciferae,.Malvaceae(锦葵科)and Asteraceae(菊科)
Polyphagous leafminer. More than 60 species in 19 families recorded in China. Prefer plants, vegetables and flowers in Leguminosae, Cucurbitaceae , Solanaceae , Cruciferae, Malvaceae (锦葵科) and Asteraceae (菊科). 2) Damage 2) Damage
*Foliage punctures caused by females during oviposition or a stippled appearance may be caused by feeding on foliage. *Irregular mine increases in width from about 0.25 mm to about 1.5 mm as the larvae mature. Fecal (waste)deposits are also evident in mines. 仅在叶片正面见蛀道， 蛀道中的虫粪多呈虚线状排 列，蛀道端部无蛹（幼虫脱 叶化蛹)，可与豌豆潜叶蝇 相区别
Foliage punctures caused by females during Foliage punctures caused by females during oviposition oviposition or a stippled appearance may be caused or a stippled appearance may be caused by feeding on foliage. by feeding on foliage. Irregular mine increases in width from about 0.25 Irregular mine increases in width from about 0.25 mm to about 1.5 mm as the larvae mature. mm to about 1.5 mm as the larvae mature. Fecal (waste) deposits are Fecal (waste) deposits are also evident in mines. also evident in mines. 仅在叶片正面见蛀道， 蛀道中的虫粪多呈虚线状排 列，蛀道端部无蛹（幼虫脱 叶化蛹），可与豌豆潜叶蝇 相区别
3)Life Cycle 21-24 generations/year in Hainan,continue to damage in winter and no diapause;14-17 in Guangdong;13-14 in Zhejiang;9-11 in valley of Yellow River and Huai River;8-9 in Beijing;7-8 in Liaoning. No stage can survive during winter outside in North.But continue to occur in greenhouse. Most severe damage appears during May to Oct. Generations overlap each other seriously
2l-24 generations/year in Hainan, continue to 24 generations/year in Hainan, continue to damage in winter and no damage in winter and no diapause diapause; 14-17 in Guangdong; 13 Guangdong; 13-14 in Zhejiang; 9 14 in Zhejiang; 9-11 in valley of 11 in valley of Yellow River and Yellow River and Huai River; 8 River; 8-9 in Beijing; 7 9 in Beijing; 7-8 in Liaoning. Liaoning. No stage can survive during winter outside in No stage can survive during winter outside in North. But continue to occur in greenhouse. North. But continue to occur in greenhouse. Most severe damage appears during May to Oct. Most severe damage appears during May to Oct. Generations overlap each other seriously. Generations overlap each other seriously. 3) Life Cycle 3) Life Cycle
4)Behavior Peak of adult eclosion in 8-11am; Adult active during daytime;weaker flying capacity and strong tropism to orange-yellow objects. Most eggs laid on 3rd and 4th extended leaf from top;not prefer to oviposit on tender leaves
Peak of adult Peak of adult eclosion eclosion in 8-11am; Adult active during daytime; weaker Adult active during daytime; weaker flying capacity and strong tropism to flying capacity and strong tropism to orange-yellow objects. yellow objects. Most eggs laid on 3 Most eggs laid on 3rd and 4th extended extended leaf from top; not prefer to leaf from top; not prefer to oviposit oviposit on tender leaves. tender leaves. 4) Behavior 4) Behavior