Aphid, black bean

Faba bean, Vicia faba cultured hydroponically with nutrient solutions containing 100 mg Cu/L for 24 days shoots analyzed before (day 4) and after (day 24) 20-day infestation by the black bean aphid, Aphis fabae. Controls were raised Aphid infestation caused a significant reduction in copper content of shoots from 51 mg Cu/kg DW to 17 mg/kg copper in control was 25 mg/kg DW prior to aphid infestation and 14 mg/kg after 20-day infestation 3... 

Crawford, L.A., I.D. Hodkinson, and N.W. Lepp. 1990. The effects of feeding by the black bean aphid Aphis fabae Scap. (Homoptera Aphididae) on copper and cadmium accumulation in broad bean (Viciafaba L.). Environ. Geochem. Health 12 245-251. 

Aphids on fava beans The black bean aphid is a common pest of fava beans, congregating on the tender shoot tips to pierce the plant and suck sap. If you nip out the shoot tips, the aphids usually shun the less palatable older growth. 

Hardie J., Isaacs R., Pickett J. A., Wadhams L. J. and Woodcock C. M. (1994) Methyl salicylate and (-)-(lR,5S)-myrtenal are plant-derived repellents for the black bean aphid. Aphis fabae Scop. (Homoptera Aphididae). J. Chem. Ecol. 20, 2847-2855. 

Although Siegler and Popence, (1925) are responsible for the early lively interest in the toxicity of the fatty acid derivatives containing a 12-carbon chain, the ccnnon use of coconut oil is only in part due to their suggestions (38). It should be noted that coconut oil is the most important and widely used oil in the soap industry. Ihe principal pests treated were aE ids rosy and green apple af ids bean aphids black chrysanthemum, etc. 

Wyrostkiewicz K, Wawrzyniak M, BarezakT, Aniszewski T, Gulewicz K. Evidence for insectoside activity of some preparations from alkaloid-rich lupin seeds on Colorado potato beetle (Leptinotarsa decemlineata Say), larvae of the large white but terfly (Pieris brassicae L.), black bean aphid (Aphis fabae Scop.) and on their parasitoids (Hymenoptera Parasitica) populations. Bull Pol Acad Sci Biol Sci 1996 44(l-2) 30-9. 

Dixon, A. F. G. and Wratten, S. D. (1971) Laboratory studies on aggregation size and fecundity in the black bean aphid. Aphis fabae Scop. Bull. Ent. Res, 61, 97-111. 

Initially it was assumed that plant derived volatiles acted only as insect attractants but now it is clear that they can also have a repellent effect (Pickett et al., 1999) due to stimulation of specific neurones that detect non-host semiochemi-cals (Hori, 1996 Hori and Kamatsu, 1997 Guerrero et al, 1997). Highly specific neurones for isothiocyanates that act as repellents have been found in insects for which brassica are non-hosts, for example, the damson-hop aphid, Phorodon humuli, and the black bean aphid, Aphis fabae (Nottingham et al, 1991). A.fabae olfactory neurones respond to the repellent compound(lR,55)-myrtenal, Fig. 3 (19),released from the nonhost herb savory, Satureja montana (Hardie et al., 1994). 

Pea and bean weevil, stem and bulb nematode, black bean aphids, brachid beetle, chocolate spot, foot rot and rast are usually the main problems in broad beans. 

Pea and bean weevil Pea cyst nematode Stem nematode Black bean aphid (blackfly) Bean seed beetle (Bruchid beetle)... 

Leaves yellow and withered. Cause Bean aphids. Adults are small, black, soft-bodied, sucking insects. For mild infestations, knock pests off plants with a blast of water. Spray plants with insecticidal soap if aphid populations are low, or with a commercial neem or pyrethrin solution if more than half the shoot tips have aphids. 

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