Pheromone-based integrated pest management to control the diamondback mothPlutella xylostella in cabbage fields

Abstract

Biorational and regular insecticide applications were evaluated for management of the diamondback moth (DBM) Plutella xylostella in cabbage (Brassica oleracea var capitata) in Karnataka State, India, in 1996 and 1997. The IPM programme, based on the pheromone trap catch threshold of eight moths per trap per night, included utilization of the parasitoid Cotesia plutellae.(250 000 adults ha À1 ), the predator Chrysoperla carnea (2500 eggs ha À1 ), the neem-based chemical nimbecidine (625 ml ha À1 ), the bacterium Bacillus thuringiensis (500 ml ha À1 ), and the synthetic insecticide phosalone (2.8 litre ha À1 ). The IPM programme induced a reduction of trap catches, egg and larval populations and, therefore, a low level of damage to the crop. The economic analysis showed that the cost of the IPM treatments was also considerably lower than that of ordinary insecticide practice (average of $62 relative to $123 ha À1 , respectively). Gross pro®t was also clearly higher in IPM plots than in farmer's ®elds, ranging from $777 to $810 ha À1 in the IPM plots compared with $456 to $462 ha À1 in the insecticide-treated ®elds. As a consequence of lower input costs and higher gross pro®t, net pro®t in IPM treatments was even more favourable, and the economic savings associated with the utilization of the IPM programme amounted to $380

Efficacy of Entomopathogenic Fungi and Nematodes, and Low Risk Insecticides Against Wheat Stem Sawfly, Cephus cinctus (Hymenoptera: Cephidae)

“…Neem extracts are reported to affect over six hundred species of pests (Sivasakthi et al, 2013). Reddy and Guerrero (2000) suggested that neem had the potential to be used as a good alternative to conventional insecticides in IPM programs. In the current study, neem effectively suppressed C. cinctus populations (Figure 2).…”

Development of bisexual attractants for diamondback moth, Plutella xylostella (Lepidoptera: Plutellidae) based on sex pheromone and host volatiles

“…The synthetic sex pheromone has been utilized to monitor and control DBM (Môttus et al, 1997;Reddy and Guerrero, 2000a). In China, more farmers prefer mass trapping to mating disruption with sex pheromone lures for control of insect pests because it is convenient and inexpensive.…”

Assessment of Commercially Available Pheromone Lures for Monitoring Diamondback Moth (Lepidoptera: Plutellidae) in Canola

“…Sex pheromone-baited traps have been developed to monitor diamondback moth in canola (Chisholm et al 1983) and commercially available lures (ConTech Enterprises Inc., Delta, BC, Canada) are currently used in the government-funded Prairie Pest Monitoring Network (http:// nlwis-snite2.agr.gc.ca/ppmn/loginFormEn.jsp) to detect the arrival of migrant diamondback moths into the Prairie provinces. Pheromone-baited traps are used to predict population densities of diamondback moth larvae in cabbage (Walker et al 2003) and threshold trap catch is used to time control measures in cabbage (Reddy and Guerrero 2000). Applications such as these for sex pheromone-baited traps in canola would assist in the management of diamondback moth in this region.…”