| multi-trophic level interactions in a cassava-maize mixed cropping system in the humid tropics of west africa. | multi-trophic level interactions in a mixed crop, involving cassava and maize, were studied in derived-savanna in benin, west africa. two trials were planted, one during the short rainy season two months before onset of the dry season and one during the long rainy season in spring. key pests under study on maize were the noctuid sesamia calamistis hampson and the pyralids eldana saccharina walker and mussidia nigrivenella ragonot, and on cassava, the exotic mealybug, phenacoccus manihoti matile- ... | 2004 | 15191627 |
| the potential distribution of cassava mealybug (phenacoccus manihoti), a threat to food security for the poor. | the cassava mealybug is a clear and present threat to the food security and livelihoods of some of the world's most impoverished citizens. niche models, such as climex, are useful tools to indicate where and when such threats may extend, and can assist with planning for biosecurity and the management of pest invasions. they can also contribute to bioeconomic analyses that underpin the allocation of resources to alleviate poverty. because species can invade and establish in areas with climates th ... | 2017 | 28296903 |
| emerging pests and diseases of south-east asian cassava: a comprehensive evaluation of geographic priorities, management options and research needs. | cassava is a major staple, bio-energy and industrial crop in many parts of the developing world. in southeast asia, cassava is grown on >4 million ha by nearly 8 million (small-scale) farming households, under (climatic, biophysical) conditions that often prove unsuitable for many other crops. while se asian cassava has been virtually free of phytosanitary constraints for most of its history, a complex of invasive arthropod pests and plant diseases has recently come to affect local crops. we des ... | 2016 | 26853194 |
| first record of cassava mealybug, phenacoccus manihoti (hemiptera: pseudococcidae), in malaysia. | | 2015 | 26249070 |
| the cassava mealybug (phenacoccus manihoti) in asia: first records, potential distribution, and an identification key. | phenacoccus manihoti matile-ferrero (hemiptera: pseudococcidae), one of the most serious pests of cassava worldwide, has recently reached asia, raising significant concern over its potential spread throughout the region. to support management decisions, this article reports recent distribution records, and estimates the climatic suitability for its regional spread using a climex distribution model. the article also presents a taxonomic key that separates p. manihoti from all other mealybug speci ... | 2012 | 23077659 |
| identification and synthesis of a kairomone mediating host location by two parasitoid species of the cassava mealybug phenacoccus herreni. | two encyrtid species, acerophagus coccois and aenasius vexans, parasitoids of the cassava mealybug phenacoccus herreni use a contact kairomone from the body surface of their host as a host-location stimulant. the kairomone was synthesized and identified as o-caffeoylserine based on a combination of chromatographic methods. the synthetic compound was determined to be active. | 2001 | 11817076 |
| pest management strategies in traditional agriculture: an african perspective. | african agriculture is largely traditional--characterized by a large number of smallholdings of no more than one ha per household. crop production takes place under extremely variable agro-ecological conditions, with annual rainfall ranging from 250 to 750 mm in the sahel in the northwest and in the semi-arid east and south, to 1500 to 4000 mm in the forest zones in the central west. farmers often select well-adapted, stable crop varieties, and cropping systems are such that two or more crops ar ... | 2000 | 10761592 |