Studies on the biology of <i>Acanthomia tomentosicollis</i> (Stål) (Hemiptera: Coreidae) in the field and insectary

Egwuatu, R. I.; Taylor, T. Ajibola

doi:10.1017/s0007485300011068

Cited by 23 publications

(16 citation statements)

References 2 publications

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“…It is known that several species of bugs (coreidae) attack pods of leguminous plants. For example, Clavigralla tomentosicollis, C. shadabi, C. elongata (Hemiptera, Coreidae) attack cowpea and pigeon pea pods, occasionally causing severe damage (Egwuatu and Taylor 1977;Singh and Taylor 1978). One of the pod-sucking bugs observed on crotalaria in large numbers on C. paulina in Tesso district was Anoplocnemis curvipes (Hemiptera, Coreidae).…”

Section: Discussionmentioning

confidence: 99%

Abundance of insect pests and their effects on biomass yields of single vs. multi-species planted fallows

Girma

Rao²,

Day

et al. 2006

Agroforest Syst

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Indigenous and exotic leguminous shrubs that are promising for planted fallow for soil fertility replenishment in east and southern Africa have been found to harbour many herbivorous insects, giving suspicion that widespread adoption of fallow systems may aggravate insect pests. Studies were conducted on farms in western Kenya from 1999 to 2001 to monitor the abundance of herbivorous insects and assess their effects on biomass yields of pure and mixed fallows. The treatments tested were single and two-species mixtures of Tephrosia vogelii, Sesbania sesban and Crotalaria grahamiana and a natural fallow in a split plot design, with the fallow systems in the main plots and protection vs. no protection against insects in sub-plots spread over six farms. Eighteen insect species belonging to seven orders and 14 families were identified as pests of the fallows with varied abundance and infestation level across the sites. While Hilda patruelis and Amphicallia pactolicus were most damaging to C. grahamiana, Mesoplatys ochroptera was detrimental to S. sesban. T. vogelii hosted fewer insects than others. Nevertheless the pest infestation did not cause significant biomass yield reduction during the study period. Pest attack was generally greater in villages that had been testing the planted fallows for some years compared with villages that took up the fallows recently. This indicates the potential for increased pest infestation with increased adoption of the system by farmers. Multi-species fallows did not indicate any advantage over single species fallows in terms of either reduced pest incidence or increased biomass production.

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Section: Discussionmentioning

confidence: 99%

Abundance of insect pests and their effects on biomass yields of single vs. multi-species planted fallows

Girma

Rao²,

Day

et al. 2006

Agroforest Syst

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“…reared on pigeonpea is completed in 15-40 days under ambient temperatures (11,19,55,91). Both C. gibbosa and C. tomentosicollis pass through five nymphal instars before reaching the adult stage.…”

Section: Pod-sucking Hemipteramentioning

confidence: 99%

“…Adult Clavigralla spp. can live more than 150 days (11,19), and females occasionally lay as many as 430 eggs in clusters of varying size. Field collections of Clavigralla egg clusters in India showed that cluster size ranges from 2 to 62 eggs (mean = 18 eggs), with more than 70% of clusters containing 7-24 eggs (81).…”

Section: Pod-sucking Hemipteramentioning

confidence: 99%

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Insect Pests of Pigeonpea and Their Management

Shanower

Romeis²,

Minja³

1999

Annu. Rev. Entomol.

125

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Pigeonpea (Cajanus cajan) is an important crop in semi-arid tropical and subtropical farming systems, providing high quality vegetable protein, animal feed, and firewood. Insect pests feeding on flowers, pods, and seeds are the most important biotic constraint affecting pigeonpea yields. This review summarizes the biology and ecology of the three most important groups of pests: flower- and pod-feeding Lepidoptera, pod-sucking Hemiptera, and seed-feeding Diptera and Hymenoptera. Recent research investigating the complex interactions among pigeonpea, its key pests, and their natural enemies is also reviewed. These relationships have implications on the pest status of individual species and on possible control strategies. Pigeonpea pest management research has focused until recently on the identification and development of resistant cultivars and on chemical control. Future research must focus on environmentally sound pest management strategies that are compatible with the needs and limitations of pigeonpea farmers. Several priority areas for research are suggested.

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“…in tropical Africa (Aina, 1975;Egwuatu and Taylor, 1977;Materu, 1970;Singh and van Emden, 1979). in tropical Africa (Aina, 1975;Egwuatu and Taylor, 1977;Materu, 1970;Singh and van Emden, 1979).…”

Section: Introductionmentioning

confidence: 99%

Tough Pod Wall: A Factor Involved in Cowpea Resistance to Pod Sucking Bugs

Chiang

Jackai

1988

Int. J. Trop. Insect Sci.

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Six cowpea cultivars, TVu 1890, TVu 1, TVx 3343-O3E, IT82E-9, VITA-3 and Ife Brown, with different responses to infestation and damage by pod-sucking bugs (PSBs) were studied for the biophysical and biochemical characteristics of pod that may be involved in this differential response to feeding by PSBs. Tough pod wall, requiring a force of 25 newtons/mm 2 to penetrate at pod maturity, is considered to be an important factor contributing to the lesser PSB feeding damage observed in the cultivar TVu 1890. The phenolic content of the pods of the studied cowpea cultivars was not correlated with their tannin content. Furthermore, no correlation could be established between the tannin content in the pod and the level of susceptibility of the cowpea cultivars to infestation and damage by PSBs. While tannins are considered to be important in conferring certain types of anti-herbivory properties to a number of plants and crop varieties, our findings suggest that in the cowpea cultivars studied, phenols in addition to the tough pod wall may be more important in conferring resistance to PSBs.Resume-Six cultivars de niebe, TVu 1890, TVu I, TVx 3343-03E, IT82E-9, VITA-3 et Ife Brown, ayant differentes reponses a l'infestation et aux degats des punaises nuisibles (PSBs), ont fait l'objet d'une etude visant a evaluer les caracteristiques biophysiques et biochimiques des gousses probablement a l'origine de cette diversite de reactions aux PSBs. La durete de la paroi des gousses est consideree comme un important facteur contribuant a la reduction des degats observes sur le cultivar TVu 1890, dans la mesure oii la penetration de cette paroi au stade de maturite des gousses requiert une force de 25 newtons/mm 2 . Les cultivars etudies n'ont revele aucune correlation entre le phenol et le tanin contenus dans les gousses. Aucune correlation n'a non plus ete etablie entre le tanin contenu dans les gousses et le niveau de sensibilite des cultivars de niebe aux degats des PSBs. S'il est vrai que les tanins conferent certains types de proprietes anti-herbivores a plusieurs plantes et de varietes culturales, nos decouvertes nous font supposer que dans les cultivars de niebe etudies, une combinaison des phenols et de la durete des parois des gousses contribuent davantage a la resistance aux PSBs.

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Studies on the biology of Acanthomia tomentosicollis (Stål) (Hemiptera: Coreidae) in the field and insectary

Cited by 23 publications

References 2 publications

Abundance of insect pests and their effects on biomass yields of single vs. multi-species planted fallows

Abundance of insect pests and their effects on biomass yields of single vs. multi-species planted fallows

Insect Pests of Pigeonpea and Their Management

Tough Pod Wall: A Factor Involved in Cowpea Resistance to Pod Sucking Bugs

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