Influence of host plants on the susceptibility of Myzus persicae (Sulz.) to certain insecticides

Ambrose, H. John; Regupathy, A.

doi:10.1017/s1742758400013928

Cited by 5 publications

(5 citation statements)

References 18 publications

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“…Similar results with monocrotophos have been reported by Ambrose and Regupathy (1990). Performance of dimethoate was better than dichlorvos, carbaryl and malathion, but comparatively less effective than diazinon, pirimiphosmethyl and monocrotophos.…”

Section: • Evaluation Of Insecticides For the Control Of Aphids On Ho...supporting

confidence: 88%

“…Similar observations were made by Hill (1983) and Ambrose and Regupathy (1990) who reported that diazinon, pirimiphos-rnethyl and monochr: is were more effective than acephate, demeton-rnethyl and methamidophos for the (:("".'! of aphids.…”

Section: • Evaluation Of Insecticides For the Control Of Aphids On Ho...supporting

confidence: 84%

“…Diazinon showed the highest efficacy on the pest a day after spray and remained effective up to 14 days. Studies earlier conducted by Ambrose and Regupathy (1990) and Uvah et al (1992) had established the superiority of diazinon over several other insecticides like carbaryl. acephate and demeton-methyl for the control of aphids on hot pepper.…”

Section: Discussionmentioning

confidence: 91%

“…Pirimiphos-methyl was the second best among the insecticides as lower population of aphids (0.30) was noted within 24 hours of its application and this trend continued up to 14 days after spraying. Ambrose and Regupathy (1990) and Uvah et al (1992) have also reported good results with pirimiphos-methyl in reducing aphid population on Capsicum spp.…”

Section: Discussionmentioning

confidence: 92%

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Preliminary Evaluation of Insecticides for the Control of Myzus persicae (Sulz.) (Homoptera : Aphidae) on Hot Pepper (Capsicum frutescense L.).

YUSUF,

YUSUF

2005

NJE

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iNTRODUCTION Hot pepper (Capsicum frutescense L.) is a herbaceous plant belonging to the family solanaceac.It is used in sauces. soups and stews. generally as a flavouring agent in curries or dried to make cayene pepper and paprika (Hill, 1983). It is also a good source of vitamins A C and E (Kochher, 1981). Furthermore, whole fruits of the crop have been found to possess insecticidal properties again=t stored product insect pests .(lvbijaro and Agbaje, 1986).The total world production is about 6, 671,000 tons per annum with Nigeria producing the largest amount of 260,000 tons per annum out of the seven rr.ajor worldproducing countries (Macfronald and Law, 1984). The crop is widely. grown in the Northern Guinea xivanna of Nigeria.Hot peppc:' is seriously affected by insect pests in Nigeria. These include the Amercian bo!' v, ;.i. llelicoverpa armigera (Hb), Stripped blist T beetle. Epicausta albovita (GestIO). tobacco whi tefly, Bemisia tabaci (Genn. J. Jass..'>. Empoasca spp .. yellow tea mites. Polvphagotassonemus latus (Bank) and aphids. Macrosiphuni spp and Aphis gossypii (Glover) (MacDonald and J .uw. ! q~4). According to Hill (1983). cotton aphid. A gossypii and the green peach .iphid. MY-:'lIs pcrsicae (Sulz.) are the two most important aphids attacking hot pepper III the tropics. They are also vectors of pepper veinal mottle virus (PVMV) (Alegbejo, 1986), Chaudhary (1995) reported M. persicae as the most destructive insect pest causing great damage and loss in yield of hot pepper in Bauchi state.The aphids suck plant sap from the leaves and part of the stem resulting ir. yellowing, drying and falling of leaves (Alegbejo, 2002).This reduces[f-:photosynthetic activity of leaves as well as plant growth and yield. Some of t+e ::.c: attacked plants stop growing and do not bear fruits. The insects also feed on :-L)'!-; -'--

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Section: • Evaluation Of Insecticides For the Control Of Aphids On Ho...supporting

confidence: 88%

Section: • Evaluation Of Insecticides For the Control Of Aphids On Ho...supporting

confidence: 84%

Section: Discussionmentioning

confidence: 91%

Section: Discussionmentioning

confidence: 92%

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Preliminary Evaluation of Insecticides for the Control of Myzus persicae (Sulz.) (Homoptera : Aphidae) on Hot Pepper (Capsicum frutescense L.).

YUSUF,

YUSUF

2005

NJE

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“…Some plant derivatives, including alkaloids, glucosinolates and nivalenol are indeed used commercially, and ana-logues of others such as the pyrethroids are also important. In fact, resistance to insecticides may often be correlated with resistance to toxins of the host plants (e.g., Ambrose and Regupathy 1992).…”

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confidence: 99%

Do plant toxins impose constraints on herbivores? An investigation using compartmental analysis

Lambdon¹,

Hassall²

2001

Oikos

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Plant secondary metabolites are often acutely toxic to animals, but the influence of this property on interactions with herbivores has been debated vigorously. In this paper we apply a compartmental model, developed to investigate the movement of insecticides through the bodies of animals, to quantify the effect of natural plant toxins. A simulation based on the model is also used to examine the degree of tolerance necessary for a herbivore to avoid illness. Comparison with studies from insecticide science suggests that the required level of tolerance is high enough to impose major ecological limitations on herbivory at naturally occurring concentrations. Various adaptive mechanisms could be employed to overcome this inhibitory effect, and the model allows a precise analysis of their relative importance in a given species. More generally, elasticity analysis shows that these mechanisms differ considerably in efficiency, with desensitisation at the molecular site of action cited as particularly cost effective. However, such efficient mechanisms are often toxin-specific, and more likely to evolve in herbivores which display a high degree of host-plant constancy. It should therefore be less costly to achieve tolerance in oligophagous herbivores than polyphagous ones. Reduced concentrations of secondary metabolites in cultivated species could curtail their effectiveness dramatically and universally

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Synergistic effect of Beauveria bassiana and spirodiclofen on the two-spotted spider mite (Tetranychus urticae)

et al. 2014

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Influence of host plants on the susceptibility of Myzus persicae (Sulz.) to certain insecticides

Cited by 5 publications

References 18 publications

Preliminary Evaluation of Insecticides for the Control of Myzus persicae (Sulz.) (Homoptera : Aphidae) on Hot Pepper (Capsicum frutescense L.).

Preliminary Evaluation of Insecticides for the Control of Myzus persicae (Sulz.) (Homoptera : Aphidae) on Hot Pepper (Capsicum frutescense L.).

Do plant toxins impose constraints on herbivores? An investigation using compartmental analysis

Synergistic effect of Beauveria bassiana and spirodiclofen on the two-spotted spider mite (Tetranychus urticae)

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