Article abstract

Journal of Agricultural and Crop Research

Research Article | Published March 2020 | Volume 8, Issue 3 pp. 48-54.

doi: https://doi.org/10.33495/jacr_v8i3.20.109

 

Population dynamics of Trioza messii Dzokou (Hemiptera: Psylloidea: Triozidae), insect pest of Caloncoba welwitschii (Flacourtiaceae), medicinal plant in Cameroon

 



 

 

Dzokou Victor Joly1, 2, 3, 4*

Yana Wenceslas2, 3, 4

Soufo Laurentine3, 4

Tamesse Joseph Lebel4

 

Email Author

 

1. University of Dschang, Faculty of Agronomy and Agricultural Sciences, Department of Plant Protection, UR_PHYZA, Laboratory of Agricultural Zoology (LAZUDs), P.O. Box 222 Dschang, Cameroon.

2. University of Bamenda, Faculty of Sciences, Laboratory of Biological Sciences, P.O. Box 39 Bambili, Cameroon.

3. University of Maroua, Faculty of Sciences, Department of Biological Sciences, P.O. Box 814 Maroua, Cameroon.

4. University of Yaoundé I, Higher Teacher’s Training School, Department of Biological Sciences, Laboratory of Zoology, P.O. Box 47 Yaoundé, Cameroon.


……....…...………..........................…………....………............…............……...........……........................................................………...……..…....……....…

Citation: Victor Joly DV, Wenceslas Y, Laurentine S, Lebel TJ (2020). Population dynamics of Trioza messii Dzokou (Hemiptera: Psylloidea: Triozidae), insect pest of Caloncoba welwitschii (Flacourtiaceae), medicinal plant in Cameroon. J. Agric. Crop Res. 8(3):48-54.

……....…...………..........................…………....………............…............……...........……........................................................………...……..…....……....…

 Abstract 


In the tropical regions of Africa, the factors which assure the population regulation of pests are less known. The objective of this work was to study the population dynamics of Trioza messii (Dzokou et al., 2009) and to search for the climatic factors which assure their regulation. Between January 2006 and December 2007, monthly collections of larvae, males and females of Trioza messii were carried out in 4 localities of the Menoua Division, Western Highlands of Cameroon. Meteorological data of the same period permitted to trace ombrothermic diagram and the curves of wind speed and insolation of Dschang. As for maturity phases, with the larvae we obtained 4 periods of 6 peaks with 4 peaks in 2006 and 2 peaks in 2007. For males, 4 periods of 9 peaks with 5 peaks in 2006 and 4 peaks in 2007. As for the females, 3 periods of 6 peaks with 3 peaks in 2006 and 3 peaks in 2007. The SPSS software was used to analyse the data. The correlation test of Spearman between the effectives of T. messii and the precipitations and the wind speed registered in Dschang is significant (r = 0.616, p < 0.001). The precipitations have a positive influence on the numerical variations on the effectives of T. messii. The wind speed has a negative influence on the numerical variations of the effectives of T. messii Dzokou in Dschang (r = -0.431, p < 0.035).

Keywords  Trioza messii    host plant    population dynamics   means of fight   Cameroon  

 

 

Copyright © 2020 Author(s) retain the copyright of this article.

This article is published under the terms of the Creative Commons Attribution License 4.0

 

 

  References 

 

Ake-Assi L, Abeye J, Guinko S, Gignet R, Bangavou Y (1978). Contribution to the identification and the census of the plants used in traditional medicine and the Central African pharmacopeia in Empire. According to the report presented at the ACCT. 139 p. [from French translation].

Bouquet A (1985). Traditional and worshipping doctors in Congo (Brazzaville).ORSTOM, Paris, 286 p. [from French translation].

Catling HD (1969a). The bionomics of the South Africa citrus psylla, Trioza erytreae (Del Guercio) (Homoptera: Psyllidae).1. The influence of the flushing rhythm of citrus and factors which regulate flushing. J. Entomol. Soc. S. Afr. 32:191-208.

Catling HD (1969b). The bionomics of the South Africa citrus psylla, Trioza erytreae (Del Guercio) (Homoptera: Psyllidae).2. The influence of parasites and notes on the species involved. J. Entomol. Soc. S. Afr. 32:209-223.

Catling HD (1969c). The bionomics of the South Africa citrus psylla, Trioza erytreae (Del Guercio) (Homoptera: Psyllidae).3. The influence of extremes of weather on survival. J. Entomol. Soc. S. Afr. 32:273-290.

Catling HD (1970). The bionomics of the South Africa citrus psylla, Trioza erytreae (Del Guercio) (Homoptera: Psyllidae). 4. The influence of predators. J. Entomol. Soc. S. Afr. 33:341-348.

Catling HD (1972). The bionomics of the South Africa citrus psylla, Trioza erytreae (Del Guercio) (Homoptera: Psyllidae). 6. Final population studies and discussion of population dynamics. J. Entomol. Soc. S. Afr. 35:235-251.

Cobbinah JR (1986). Factors affecting the distribution and abundance of Phytolyma lata (Homoptera: Psyllidae). Int. J. Insect. Sci. 7:111-115.

Dzokou VJ, Tamesse JL, Burckhardt D (2009a). Trioza messii sp. n., a new species of jumping plant-louse (Hemiptera: Triozidae) from Cameroon associated with Caloncoba welwitschii (Oliv.) Gilg. (Flacourtiaceae). J. Exp. Biol. 5(1):29-36.

Dzokou VJ, Tamesse JL, Burckhardt D (2009b). Jumping plant-lice of the family Psyllidae (Hemiptera: Psylloidea) from West-Cameroon: Biodiversity and host plants. J. Entomol. 6(1):1-17.

Dzokou VJ, Yana W, Tamesse JL, De Coninck E (2017). Pseudoeriopsylla etoundii sp. n., a new species of Psyllids (Hemiptera: Homotomidae), pest of Ficus leprieuri (Moraceae) from West-Cameroon. Int. J. Biol. Chem. Sci. 11(4):1592-1600.

Malenovsky I, Burckhardt D, Tamesse JL (2007). Jumping plant-lice of the family Phacopteronidae (Hemiptera: Psylloidea) from Cameroon. J. Nat. Hist. 41(29-32):1875-1927.

Milaire HG (1987). The plant health protection of apple and pear trees in orchards by the integrated fight. Phytoma. Crop Defense 392:38-48. [from french translation].

Noubissi YE, Yana W, Tamesse JL (2014). Population dynamic of Diclidophlebia eastopi Vondracek and Diclidophlebia harrisoni Osisanya, psyllids pest of Triplochiton scleroxylon (K. Schum) (Urticales: Sterculiaceae) in Yaoundé, Cameroon. J. Entomol. 11(4):182-197.

Noubissi YE, Yana W, Tamesse JL (2016). Population dynamics of Phytolyma fusca Alibert (Hemiptera: Homotomidae), psyllids pest of Milicia excelsa (Welw) (Rosales:Moraceae) in Cameroon. J. Entomol. Zool. Stud. 4(6):256-262.

Riba G, Silvy C (1989). Fight the pests of cultures: stakes and prospects (Edited by INRA). Paris, 230 pp. [from French translation].

Soufo L, Tamesse JL (2015). Population dynamic of Blastopsylla occidentalis Taylor (Hemiptera: Psyllidae), a psyllid pest of Eucalyptus. Neotrop. Entomol. 44(5):504-512.

Soufo L, Dzokou VJ, Tamesse JL (2018). Ctenarytaina fomenae sp.n. (Hemiptera: Aphalaridae), a new species of psyllid, pest of Syzygium guineense (Myrtaceae) from Western Cameroon. J. Entomol. Zool. Stud. 6(1):1659-1663.

Tamesse JL, Burckhardt D, Dzokou VJ, Yana W, Mveyo Ndankeu YP, Foko Dadji GA, Messi J (2007). Jumping plant-lice of the family Triozidae (Hemiptera: Psylloidea) from Cameroon: Biodiversity and host plants. J. Entomol. 4(3):181-193.

Tamesse JL, Messi J (2004). Factors influencing the dynamics of the populations of the African psyllid of citrus fruits Trioza erytreae Del Guercio (Hemiptera: Triozidae) in Cameroon. Int. J. Trop. Insect. Sci. 24(3):213-227. [From French translation].

Van Den Berg MA, Anderson SH, Deacon VE (1991a). Population studies of the citrus psylla Trioza erytreae: factors influencing dispersal. Phytophylactica19:283-289.

Van Den Berg MA, Deacon VE, Steenekamp PJ (1991b). Dispersal within and between citrus orchards and native hosts, and nymphal mortality of citrus psylla Trioza erytreae (Hemiptera: Triozidae). Agric. Ecosyst. Environ.35:297-309.

Yana W, Mveyo Ndankeu YP, Dzokou VJ, Tamesse JL (2017). Trioza kala sp.n. (Hemiptera: Triozidae), a new species of psyllid associated with Beilschmiedia obscura (Fouilloy et al. 1974) (Lauraceae) from Cameroon. J. Entomol. Zool. Stud. 5(6):2179-218.