Publications

toxicity of vegetable oils to the coconut mite aceria guerreronis and selectivity against the predator neoseiulus baraki.	the coconut mite, aceria guerreronis (acari: eriophyidae), is a major tropical pest of coconut. here, we assessed the chemical profiles and the potential use of babassu, degummed soybean, and coconut oils to control a. guerreronis as well as their side-effects on the predatory mite neoseiulus baraki (acari: phytoseiidae), a key natural enemy of the coconut mite. babassu and coconut oils had similar fatty acids chemical profiles. all vegetable oils showed toxicity to a. guerreronis; degummed soyb ...	0	28493037
predator performance is impaired by the presence of a second prey species.	the simultaneous infestation of a plant by several species of herbivores may affect the attractiveness of plants to the natural enemies of one of the herbivores. we studied the effect of coconut fruits infested by the pests aceria guerreronis and steneotarsonemus concavuscutum, which are generally found together under the coconut perianth. the predatory mite neoseiulus baraki produced lower numbers of offspring on fruits infested with s. concavuscutum and on fruits infested with both prey than o ...	0	27819202
plant structural changes due to herbivory: do changes in aceria-infested coconut fruits allow predatory mites to move under the perianth?	being minute in size, eriophyoid mites can reach places that are small enough to be inaccessible to their predators. the coconut mite, aceria guerreronis, is a typical example; it finds partial refuge under the perianth of the coconut fruit. however, some predators can move under the perianth of the coconut fruits and attack the coconut mite. in sri lanka, the phytoseiid mite neoseiulus baraki, is the most common predatory mite found in association with the coconut mite. the cross-diameter of th ...	2007	17899401
rearing of coconut mite aceria guerreronis and the predatory mite neoseiulus baraki in the laboratory.	a method was developed for the rearing of coconut mite, aceria guerreronis keifer (acari: eriophyidae), and its predatory mite neoseiulus baraki (athias-henriot) (acari: phytoseiidae) on embryo culture seedlings of coconut (cocos nucifera) in the laboratory. seedlings in the ages of <2, 2-4 and 4-6 months were infested with 75 field-collected coconut mites and the population growth was determined up to six weeks after introduction. the populations of coconut mites increased exponentially up to f ...	2008	18058025
exploration of the acarine fauna on coconut palm in brazil with emphasis on aceria guerreronis (acari: eriophyidae) and its natural enemies.	coconut is an important crop in tropical and subtropical regions. among the mites that infest coconut palms, aceria guerreronis keifer is economically the most important. we conducted surveys throughout the coconut growing areas of brazil. samples were taken from attached coconuts, leaflets, fallen coconuts and inflorescences of coconut palms in 112 localities aiming to determine the occurrence and the distribution of phytophagous mites, particularly a. guerreronis, and associated natural enemie ...	2008	18062836
population dynamics of aceria guerreronis keifer (acari: eriophyidae) and associated predators on coconut fruits in northeastern brazil.	aceria guerreronis keifer can cause severe damage to coconuts in several countries around the world. rare studies have been conducted to determine the predatory mites associated with a. guerreronis in brazil. the study evaluated the prevalence of a. guerreronis and associated predators on the bracts and on the surface of the fruits underneath the bracts, for 12 months, on coconut palms grown along the coast of the states of alagoas, paraíba and pernambuco, northeastern brazil. mites of 10 famili ...	2008	18813749
diet-dependent life history, feeding preference and thermal requirements of the predatory mite neoseiulus baraki (acari: phytoseiidae).	neoseiulus baraki athias-henriot (acari: phytoseiidae) has been reported from the americas, africa and asia, often in association with aceria guerreronis keifer (acari: eriophyidae), one of the most important pests of coconut (cocos nucifera l.) in different parts of the world. that phytoseiid has been considered one of the most common predators associated with a. guerreronis in brazil. the objective of this study was to evaluate the feeding preference and the effect of food items commonly prese ...	2010	19774469
olfactory response of predatory mites to vegetative and reproductive parts of coconut palm infested by aceria guerreronis.	the phytophagous mite aceria guerreronis keifer is an important pest of coconut worldwide. a promising method of control for this pest is the use of predatory mites. neoseiulus baraki (athias-henriot) and proctolaelaps bickleyi bram are predatory mites found in association with a. guerreronis in the field. to understand how these predators respond to olfactory cues from a. guerreronis and its host plant, the foraging behavior of the predatory mites was investigated in a y-tube olfactometer and o ...	2011	21499777
the coconut mite, aceria guerreronis, in benin and tanzania: occurrence, damage and associated acarine fauna.	the coconut mite aceria guerreronis (eriophyidae) is considered the most important pest of coconut fruits in africa; however, quantitative knowledge about its distribution and abundance is lacking. we conducted four diagnostic surveys-three in southern benin and one along the coast of tanzania-to determine the distribution of a. guerreronis and the severity of its damage to coconut fruits, as well as the diversity and abundance of other associated mites and potential natural enemies. aceria guer ...	2011	21789564
distribution of aceria guerreronis and neoseiulus baraki among and within coconut bunches in northeast brazil.	aceria guerreronis keifer (acari: eriophyidae) is considered a major pest of coconut in many countries in the americas, africa and parts of asia. neoseiulus baraki athias-henriot (acari: phytoseiidae) is one of the predatory mites most commonly found in association with a. guerreronis in parts of northeast brazil. the objective of this work was to study the distribution of a. guerreronis and n. baraki among and within coconut bunches. the hypothesis was tested that a. guerreronis and n. baraki a ...	2011	21479809
morphological, molecular and cross-breeding analysis of geographic populations of coconut-mite associated predatory mites identified as neoseiulus baraki: evidence for cryptic species?	surveys were conducted in brazil, benin and tanzania to collect predatory mites as candidates for control of the coconut mite aceria guerreronis keifer, a serious pest of coconut fruits. at all locations surveyed, one of the most dominant predators on infested coconut fruits was identified as neoseiulus baraki athias-henriot, based on morphological similarity with regard to taxonomically relevant characters. however, scrutiny of our own and published descriptions suggests that consistent morphol ...	2012	22407586
population dynamics of aceria guerreronis (acari: eriophyidae) and its predatory mite, neoseiulus baraki (acari: phytoseiidae) in two coconut growing areas in sri lanka.	densities of coconut mite, aceria guerreronis keifer (acari: eriophyidae) and its predatory mite, neoseiulus baraki athias-henriot (acari: phytoseiidae) were monitored on coconut fruits in two coconut mite infested areas, kalpitiya and madurankuliya, in sri lanka, over a period of 3 years and were compared with local rainfall records. significant differences in a. guerreronis densities were observed among years and months of the year. rainfall (amount and frequency, i.e. the total number of days ...	2012	22327463
limitations of neoseiulus baraki and proctolaelaps bickleyi as control agents of aceria guerreronis.	several predatory mites have been found in association with the coconut mite, aceria guerreronis keifer, in northeast brazil. however, the latter still causes damage to coconut in that region. the objectives of this work were to compare the frequencies of occurrence of neoseiulus (phytoseiidae) and proctolaelaps (melicharidae) species on standing and aborted coconuts in coastal pernambuco state, northeast brazil and to analyze their possible limitations as control agents of the coconut mite, bas ...	2012	22270113
status of aceria guerreronis keifer (acari: eriophyidae) as a pest of coconut in the state of sao paulo, southeastern brazil.	the coconut mite, aceria guerreronis keifer, is one of the main pests of coconut palms (cocos nucifera) in northeastern brazil. the objective of this study was to evaluate the levels of the coconut mite and other mites on coconut palms in the state of são paulo and to estimate the possible role of predatory mites in the control of this pest. the effect of cultivated genotypes and sampling dates on the mite populations was also estimated. we sampled attached fruits, leaflets, inflorescences, and ...	2012	23950068
survival and behavioural response to acaricides of the coconut mite predator neoseiulus baraki.	the coconut mite, aceria guerreronis keifer, is a major pest of coconut palm in the world. the control of this pest species is done through acaricide applications at short time intervals. however, the predators of this pest may also be affected by acaricides. among the predators of a. guerreronis, neoseiulus baraki (athias-henriot) has potential for biological control. the objective of this study was to assess the effect of acaricides on the survival and behavior of n. baraki. the survivorship o ...	2013	23224672
acaricide-impaired functional predation response of the phytoseiid mite neoseiulus baraki to the coconut mite aceria guerreronis.	acaricides may interfere with a myriad of interactions among arthropods, particularly predator-prey interactions. the coconut mite, aceria guerreronis keifer (acari: eriophyidae), and its phytoseiid predator, neoseiulus baraki (athias-henriot) (acari: phytoseiidae), provide an opportunity to explore such interference because the former is a key coconut pest species that requires both predation and acaricide application for its management. the objective of the present study was to assess the effe ...	2015	25847106
bioinsecticide-predator interactions: azadirachtin behavioral and reproductive impairment of the coconut mite predator neoseiulus baraki.	synthetic pesticide use has been the dominant form of pest control since the 1940s. however, biopesticides are emerging as sustainable pest control alternatives, with prevailing use in organic agricultural production systems. foremost among botanical biopesticides is the limonoid azadirachtin, whose perceived environmental safety has come under debate and scrutiny in recent years. coconut production, particularly organic coconut production, is one of the agricultural systems in which azadirachti ...	2015	25679393
population-level effects of abamectin, azadirachtin and fenpyroximate on the predatory mite neoseiulus baraki.	the coconut production system, in which the coconut mite aceria guerreronis is considered a key pest, provides an interesting model for integration of biological and chemical control. in brazil, the most promising biological control agent for the coconut mite is the phytoseiid predator neoseiulus baraki. however, acaricides are widely used to control the coconut mite, although they frequently produce unsatisfactory results. in this study, we evaluated the simultaneous direct effect of dry residu ...	2016	27495808
pesticides & passive dispersal: acaricide- and starvation-induced take-off of the predatory mite neoseiulus baraki.	an understanding of the causes and consequences of dispersal is vital for managing populations. environmental contaminants, such as pesticides, provide potential environmental context-dependent stimuli for dispersal of targeted and non-targeted species, which may occur not only for active but also for passive dispersal, although such a possibility is frequently neglected. here, we assessed the potential of food deprivation and acaricides to interfere with the take-off for passive (wind) dispersa ...	2018	29316207