Petrona Alvarado's research while affiliated with National Autonomous University of Nicaragua, León and other places

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Publication (1)

Table 1 . Response of six populations of H. hampei to two diagnostic...
Table 2 . Concentration-mortality response of P. xylostella from...
Table 3 . Dose-mortality relationship in two populations of S. exigua...
Table 4 . Dose mortality-relationship in three field populations of H....
Table 5 . Concentration-mortality relationship in field populations of...
Assessment of Insecticide Resistance in Five Insect Pests Attacking Field and Vegetable Crops in Nicaragua
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  • Jan 2001
Field populations of Hypothenemus hampei (Ferrari), Plutella xylostella (L.), Spodoptera exigua (Hübner), Helicoverpa zea (Boddie) and Bemisia tabaci (Gennadius) were tested for resistance to several insecticides commonly used in Nicariagua. Assays were conducted to estimate the LD50s or LC50s and the corresponding resistance ratios. A diagnostic c...
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Citations

... Such resistance has been also documented in insects like triatomine bugs [37]. In agriculture plagues, resistance to common insecticides has increased during the last eight decades [38,39]. Although some oral medications for human use can affect fecundity and mortality of hematophagous insects, such as Cimex lectularius L, the required dosage in most studies reaches the maximum permitted concentration in plasma [40]. ...
Reference: Embryonic Development of Pediculus humanus capitis: Morphological Update and Proposal of New External Markers for the Differentiation Between Early, Medium, and Late Eggs
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