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Approx 20 insects and mites were found attacking cassava in several regions of Colombia at different growth stagcs and seasons. Thrips (Frankliniella williamsi), gall midges (Cecidomyiidae) and whiteflies (Bemisia sp. and Trialeurodes sp.) were present in greater than 50 percent of the plantation...


Díaz, R.O.Bellotti, Anthony C.Schoonhoven, Aart van[Insectos y acaros que atacan el cultivo de la yuca en Colombia]Insectos y acaros que atacan el cultivo de la yuca en Colombia

In the past decade, whiteflies (Homoptera:Aleyrodidae), as pests and vectors of plant viruses, have become one of the most serious crop protection problems in the tropics. The result has been devastating crop losses for small-holder producers and unprecedented insecticide abuse. There is urgent n...


International Center for Tropical Agriculture[Phase I: sustainable integrated management of whitefly as pests and vectors of plant viruses in the tropics: a system-wide IPM initiative project]Phase I: sustainable integrated management of whitefly as pests and vectors of plant viruses in the tropics: a system-wide IPM initiative project

Information on some diseases and pests that attack cassava, as well as the symptoms induced by nutritional deficiencies and toxicities and damage resulting from the misuse of herbicides are given in this manual. Specific and general recommendations regarding the control of the described problems ...

En este manual se presenta informacion sobre algunas de las enfermedades y plagas que atacan a la yuca, como tambien los sintomas inducidos por deficiencias y toxicidades nutricionales y danos debidos al uso incorrecto de los herbicidas. Se incluyen recomendaciones generales y especificas para el...


Lozano, J.C.Bellotti, Anthony C.Reyes, J.A.Howeler, Reinhardt H.Leihner, D.E.Doll, J.[Field problems in cassava]Field problems in cassava

Bellotti, Anthony C.Bohórquez Cháux, AdrianaVargas Daza, JaimeArias, V.B.Vargas Bonilla, H.L.Trujillo, GMba, CDuque E., Myriam CristinaTohme, Joseph M.[Recent advances in host plant resistance to whiteflies (Aleurotrachelus socialis Bondar (Homoptera: Aleyrodidae) in cassava (Manihot esculenta Crantz)]Recent advances in host plant resistance to whiteflies (Aleurotrachelus socialis Bondar (Homoptera: Aleyrodidae) in cassava (Manihot esculenta Crantz)

Bellotti, Anthony C.Arias, V.B.Bohórquez Cháux, AdrianaVargas Daza, JaimeVargas Bonilla, H.L.Trujillo, GMba, CDuque E., Myriam CristinaTohme, Joseph M.[Recent advances in host plant resistance to whiteflies in cassava]Recent advances in host plant resistance to whiteflies in cassava

In early 1993, the spiralling whitefly, Aleurodicus dispersus (Russell), was observed in Benin for the first time, inflicting damage to ornamental and shade trees and cassava. The parasitoids Encarsia ?haitiensis Dozier and E. guadeloupae Viggiani were observed in the second half of 1993. They we...


D'Almeida, Y.A.Lys, J.A.Neuenschwander, P.Ajuonu, O.[Impact of two accidentally introduced Encarsia species (Hymenoptera: Aphelinidae) and other biotic and abiotic factors on the spiralling whitefly Aleurodicus dispersus (Russell) (Homoptera: Aleyrodidae) in Benin, West Africa]Impact of two accidentally introduced Encarsia species (Hymenoptera: Aphelinidae) and other biotic and abiotic factors on the spiralling whitefly Aleurodicus dispersus (Russell) (Homoptera: Aleyrodidae) in Benin, West Africa

Whiteflies (Hemiptera, Aleyrodidae) are represented by more than 1500 herbivorous species around the world. Some of them are notorious pests of cassava (Manihot esculenta), a primary food crop in the tropics. Whitefly populations are regulated mainly by Hymenopteran parasitoids. Despite their imp...


Vásquez Ordoñez, Aymer AndrésHazzi, Nicolas AEscobar Prieto, DavidPaz-Jojoa, DarioParsa, Soroush[A geographic distribution database of the cassava whitefly complex (Hemiptera, Aleyrodidae) and their associated parasitoids and hyperparasitoids (Hymenoptera)]A geographic distribution database of the cassava whitefly complex (Hemiptera, Aleyrodidae) and their associated parasitoids and hyperparasitoids (Hymenoptera)
Morales, Francisco José[Whiteflies as vectors of viruses in legume and vegetable mixed cropping systems in the tropical lowlands of Central America, Mexico and the Caribbean. Introduction]Whiteflies as vectors of viruses in legume and vegetable mixed cropping systems in the tropical lowlands of Central America, Mexico and the Caribbean. Introduction

Several sap-sucking insects (Hemiptera: Sternorrhyncha) of neotropical origin have been accidentally introduced to Southeast Asia and West Africa in recent years, including the mealybugs Paracoccus marginatus Williams & Granara de Willink, Phenacoccus madeirensis Green, Phenacoccus manihoti Matil...


Muniappan, R.Shepard, B.Watson, G.Carner, G.Rauf, A.Sartiami, D.Hidayat, P.Afun, J.V.Goergen, Georg E.Ziaur Rahman, A.K.[New records of invasive insects (Hemiptera: Sternorrhyncha) in Southeast Asia and West Africa]New records of invasive insects (Hemiptera: Sternorrhyncha) in Southeast Asia and West Africa
Morales, Francisco José[Whiteflies as vectors of viruses in legume and vegetable mixed cropping systems in the tropical lowlands of Central America, Mexico and the Caribbean. Conclusions and recommendations]Whiteflies as vectors of viruses in legume and vegetable mixed cropping systems in the tropical lowlands of Central America, Mexico and the Caribbean. Conclusions and recommendations

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