Influence of Soil Types on Citrus Nematode Species Diversity and Abundance on Varied Ecological Conditions in Kenya

Kiptoo, Judith Jeruto; Mutisya, Daniel L.; Ndegwa, Paul N.; Amata, R.; Irungu, LW; Godfrey, Rotich

doi:10.17582/journal.pjn/2022/40.1.12.21

Cited by 2 publications

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“…One of these predatory mites was selected for evaluation for biological control of citrus mite pest; Amblydromalus hum Pritchard & Baker. The species A. hum was studied for its abundance and occurrence among different localities of citrus production in Kenya and found most suitable for augmentation and conservation for suppression of red mites and small sized insect pests on citrus [8]. Out of six varied agro climatic conditions of low coastal and midlands regions where citrus is grown A. hum occurrence was at 56% of the total specimens collected hence befitting evaluation for suppression of citrus red mite pest, Eutetranychus africanus Tucker among other pests on citrus [9].…”

Section: Introductionmentioning

confidence: 99%

Cohort Development and Population Growth of <i>Amblydromalus hum</i> (Acari: Phytoseiidae) on Citrus Red Mite in Comparison to Maize Pollen

Kiptoo¹,

Mutisya²,

Ndegwa³

et al. 2021

AJE

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Phytoseiidae mites suppress pest mites and small arthropods below injury levels. A study on cohort life stage of Amblydromalus hum Pritchard & Baker was carried out to determine development and growth of the Phytosiidae mite. General observation showed a lower turnover of the larval stage to the Protonymph stage from the 12 th day onward, probably this could be attributed to some cannibalism taking place where adults could prey on the larvae and the nymphal stages. Significantly, the larvae were most abundant within 21 days when A. hum was fed E. africanus showing a cohort life stage composition of 39% overall population among other motile life stages. Similarly, same larvae appeared significantly most abundant when feed on maize pollen at 61% over other cohort life stage within a period of 4 days. Female adults starved death by 3 rd day and were found not to lay eggs within the period. It was observed that female adult A. hum did not live beyond the 3 rd day when 100% mortalities occurred where maize. The study results showed that A. hum preference for E, africanus prey over maize pollen limited the predator's survival in the absence of the preferred diet and hence need to explore alternative substrates in citrus orchards to boost information on how to conserve the beneficial predator in citrus production.

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Section: Introductionmentioning

confidence: 99%

Cohort Development and Population Growth of <i>Amblydromalus hum</i> (Acari: Phytoseiidae) on Citrus Red Mite in Comparison to Maize Pollen

Kiptoo¹,

Mutisya²,

Ndegwa³

et al. 2021

AJE

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Pathogenicity of Citrus Nematode (Tylenchulus semipenetrans)

Hagag

2023

Advances in Environmental Engineering and Green Technologies

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Citrus slow decline nematode, Tylenchulus semipenetrans, causes significant damage to all citrus-producing regions of the world and limits the production of citrus fruit under a wide range of environmental and edaphic conditions. T. semipenetrans is a semiendoparasite with a fairly narrow host rang that includes olive, grape, and citrus. No species in the genus citrus has been found to have resistance to T. semipenetrans but the only source of resistance incorporated into citrus is a dominate trait derived from Poncirus trifoliate. This chapter covers host preference among the citrus species and other hosts, biotypes, or races of T. semipenetrans and the relationship between different initial densities of T. semipenetrans and nematode infestation. Consequently, it is necessary to understand the environmental factors affecting parasitism to T. semipenetrans and management practices.

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Influence of Soil Types on Citrus Nematode Species Diversity and Abundance on Varied Ecological Conditions in Kenya

Cited by 2 publications

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Cohort Development and Population Growth of <i>Amblydromalus hum</i> (Acari: Phytoseiidae) on Citrus Red Mite in Comparison to Maize Pollen

Cohort Development and Population Growth of <i>Amblydromalus hum</i> (Acari: Phytoseiidae) on Citrus Red Mite in Comparison to Maize Pollen

Pathogenicity of Citrus Nematode (Tylenchulus semipenetrans)

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Influence of Soil Types on Citrus Nematode Species Diversity and Abundance on Varied Ecological Conditions in Kenya

Cited by 2 publications

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Cohort Development and Population Growth of &lt;i&gt;Amblydromalus hum&lt;/i&gt; (Acari: Phytoseiidae) on Citrus Red Mite in Comparison to Maize Pollen

Cohort Development and Population Growth of &lt;i&gt;Amblydromalus hum&lt;/i&gt; (Acari: Phytoseiidae) on Citrus Red Mite in Comparison to Maize Pollen

Pathogenicity of Citrus Nematode (Tylenchulus semipenetrans)

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Cohort Development and Population Growth of <i>Amblydromalus hum</i> (Acari: Phytoseiidae) on Citrus Red Mite in Comparison to Maize Pollen

Cohort Development and Population Growth of <i>Amblydromalus hum</i> (Acari: Phytoseiidae) on Citrus Red Mite in Comparison to Maize Pollen