Southern catalpa leaves vector about 1 month 10 Yellow buckeye leaves vector about 1 month 14 Silky oak leaves vector about 1 month 6 Common hackberry leaves vector about 1 month 8 California buckeye leaves vector about 1 month 10 Crack willow leaves vector about 1 month 7 Common lime leaves vector about 1 month 8 Common hawthorn leaves vector about 1 month 7 Common ash leaves vector about 1 month 8 American mountain ash leaves vector about 1 month 6 Pagoda tree leaves vector about 1 month 6 Modesto ash leaves vector about 1 month 9 Handkerchief tree leaves vector about 1 month 4 Foxglove tree leaves vector about 1 month 6 European mountain ash leaf vector about 1 month 8 European chestnut leaves vector about 1 month 7 European ash leaves vector about 1 month 4 European alder leaves vector about 1 month 5 Blue beech leaves vector about 1 month 2 Bird cherry leaves vector 29 days 6 Willow oak leaves vector 8 months 109 Silver maple leaves vector 8 months 110 Shagbark hickory tree leaves vector 7 months 90 Scarlet oak leaves vector 8 months 118 Paperbark maple leaves vector 8 months 102 Ohio buckeye leaves vector 7 months 95 Norway maple leaves vector 7 months 109 London plane tree leaves vector 8 months 112 Kentucky coffee leaves vector 8 months 98 Golden oak leaves vector 8 months 111 Box elder leaves vector 7 months 83 Black locust leaves vector 8 months 84 American elm leaves vector 8 months 98 American beech leaves vector 8 months 90 Marijuana vector 8 months 95 Ivy vector 8 months 86 Cranberry vector 8 months 79 Clover vector 8 months 85 Wild cherry tree leaves vector 9 months 138 Swamp white oak leaves vector 8 months 126