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首页> 外文期刊>African Journal of Food, Agriculture, Nutrition and Development >Insects observed on cowpea flowers in three districts in the central region of Ghana
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Insects observed on cowpea flowers in three districts in the central region of Ghana

机译：在加纳中部三个地区的flowers豆花上观察到的昆虫

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Globally, it has been estimated that more than 100,000 species of wild plants depend on insects for pollination and reproduction. In Africa, and for that matter Ghana, not much is known about crop pollinators, especially legumes such as cowpea. In Ghana, little is known about even insects that visit the cowpea flowers. However, if the insects that visit the cowpea flowers are known it would serve as a platform to investigate insects that can possibly cause pollination in cowpea. Hence, this study was undertaken to verify the types of insects that visit cowpea flowers in three districts in the Central Region of Ghana. As a result, insects that visited cowpea flowers on surveyed, and the researcher’s own established farms were observed on the petals, tip of the stigma and inside the flowers. Samples of insects collected were identified. Also, percentage frequency of occurrence of the insects on the various parts of the flowers was determined. Differences between total frequencies were determined using chi square (÷2) analysis. The main insects observed on the cowpea flowers were bees such as Apis mellifera, Ceratina sp, Megachile sp, Xylocopa calens, Xylocopa imitator, Braussepis sp., .Lipotriches sp., Melecta sp and Amegilla sp. and other insects, such as thrips, flies, butterflies / moths, beetles, and Dysdercus sp. Thrips were the insects most often observed on the cowpea flowers in the surveyed farms, followed by flies or dipterans, Lasioglossium sp and butterflies/moths. From the researcher’s own established farm, during the minor rainy season, the most active insect observed on the tip of stigmas of the flowers was Megachile s p whilst thrips, butterflies / moths, Lasioglossum sp . and flies were active on the petals of the flowers. The differences between the total frequencies were highly significant (÷2 = 154.61; P = 0.001). Indications are that Ceratina is most likely to be cowpea flower pest rather than a pollinator. However, further research into the role of Ceratina on cowpea flowers is recommended. Key words: Cowpea, flower visitor, pollination, insect, pest
机译：在全球范围内，据估计有超过100,000种野生植物依靠昆虫进行授粉和繁殖。在非洲，就加纳而言，对农作物授粉媒介的了解不多，尤其是豆科植物如known豆。在加纳，人们甚至对访问the豆花的昆虫一无所知。但是，如果知道访问visit豆花的昆虫，它将作为研究可能导致investigate豆授粉的昆虫的平台。因此，本研究旨在验证加纳中部三个地区访问district豆花的昆虫的类型。结果，在被调查的昆虫中访问了cow豆花，并在花瓣，柱头的顶端和花的内部观察到了研究人员自己建立的农场。确定了收集的昆虫样品。而且，确定了昆虫在花的各个部分上出现的百分比频率。使用卡方（÷2）分析确定总频率之间的差异。在the豆花上观察到的主要昆虫是蜜蜂，例如蜜蜂Apis mellifera，Ceratina sp，Megachile sp，Xylocopa calens，Xylocopa imitator，Braussepis sp。，。Lipotriches sp。，Melecta sp和Amegilla sp。和其他昆虫，例如蓟马，苍蝇，蝴蝶/飞蛾，甲虫和Dysdercus sp.。蓟马是在被调查农场的the豆花上最常观察到的昆虫，其次是苍蝇或dip虫，Lasioglossium sp和蝴蝶/飞蛾。在研究人员自己建立的农场中，在少雨季节，在花的柱头上观察到的最活跃的昆虫是Megachile s p，而蓟马，蝴蝶/飞蛾，Lasioglossum sp。苍蝇活跃在花朵的花瓣上。总频率之间的差异非常显着（÷2 = 154.61; P = 0.001）。迹象表明，Ceratina最有可能是cow豆花害虫，而不是传粉媒介。但是，建议进一步研究Ceratina在cow豆花上的作用。关键词：Cow豆花客授粉昆虫害虫

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