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Gibberellic acid decreases Melanocallis caryaefoliae (Hemiptera: Aphididae) population density and chlorotic feeding injury to foliage in pecan orchards
Pest Management Science ( IF 4.1 ) Pub Date : 2020-11-05 , DOI: 10.1002/ps.6173
Ted E Cottrell 1 , Bruce W Wood 1
Affiliation  

Melanocallis caryaefoliae (Davis), Monellia caryella (Fitch), and Monelliopsis pecanis Bissell (Hemiptera: Aphididae) attack pecan foliage (Carya illinoinensis [Wangenh.] K. Koch). Unlike M. caryella and M. pecanis, feeding by M. caryaefoliae triggers a physiological change within foliage mimicking natural leaf senescence; it can lead to defoliation. Pretreatment of pecan foliage with gibberellic acid (GA3) mitigates M. caryaefoliae‐elicited physiological disturbances. GA3 application to pecan was evaluated for efficacy regarding effects on M. caryaefoliae populations and possible negative side‐effects on two natural enemy species and on return bloom of pecan.

中文翻译:

赤霉酸降低山核桃园叶黑果(半翅目:蚜科)种群密度和褪绿摄食伤害

Melanocallis caryaefoliae (Davis)、Monellia caryella (Fitch) 和Monelliopsis pecanis Bissell (Hemiptera: Aphididae) 攻击山核桃叶子 ( Carya illinoinensis [Wangenh.] K. Koch)。与M. caryellaM. pecanis不同,M. caryaefoliae的摄食会引发叶子内的生理变化,模仿自然的叶子衰老;它会导致落叶。用赤霉酸 (GA 3 )预处理山核桃叶可减轻M. caryaefoliae 引起的生理障碍。评估了GA 3对山核桃的应用对M. caryaefoliae的影响种群和可能对两种天敌物种和山核桃开花的负面影响。
更新日期:2020-11-05
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