תפריט נגישות
ניגודיות עדינהניגודיות גבוהה
מונוכרום
הדגשת קישורים
חסימת אנימציה
פונט קריא
סגור
איפוס הגדרות נגישות
להורדת מודול נגישות חינם תפריט נגישותניגודיות עדינהניגודיות גבוההמונוכרוםהדגשת קישוריםחסימת אנימציהפונט קריאסגוראיפוס הגדרות נגישותלהורדת מודול נגישות חינםJoseph K. Stewart, Preston L. Hartsell, David K. Young
Acetaldehyde (Aa), a naturally occurring volatile compound, killed Myzus persicae (Sulzer) on harvested head lettuce Lactuca sativa L. without injuring the commodity.
Vapors of Aa at 0.25% caused 100% mortality to aphids during a 2-h exposure. When lettuce heads were infested with aphids, a higher concentration of Aa and a longer exposure (2.0% for 3 h) were required to cause 100% mortality than when the aphids were fumigated alone.
Joseph K. Stewart, Preston L. Hartsell, David K. Young
Acetaldehyde (Aa), a naturally occurring volatile compound, killed Myzus persicae (Sulzer) on harvested head lettuce Lactuca sativa L. without injuring the commodity.
Vapors of Aa at 0.25% caused 100% mortality to aphids during a 2-h exposure. When lettuce heads were infested with aphids, a higher concentration of Aa and a longer exposure (2.0% for 3 h) were required to cause 100% mortality than when the aphids were fumigated alone.
