Abstract
The effectiveness of technical products of Naled, Lambada, Fenthion (Lebaycid), Fenitrothion (Sumithion), Malathion and Dimethoate (mixed with methyl eugenol in the ratio of 1:4), in addition to commercial Malathion (57% EC mixed with methyl eugenol in two ratios of 1:2 and 2:3) were evaluated under field conditions as male annihilation technique (lure and kill) of Bactrocera zonata (Saunders) (Diptera: Tiphritidae). Plant fiber blocks saturated with mentioned mixtures were used at four governorates of Egypt (Damietta, Dakahlia, Ismailia and Fayoum) over 12 successive weeks. Efficiency (as lured and killed populations per block per day) of all tested mixtures degraded over time regardless the area. The obtained results revealed that Naled mixture was significantly superior to all other mixtures regard less area or inspection. Naled mixture blocks were relatively effective for up to 8 weeks while others efficiency did not exceed 4 weeks. Commercial Malathion (1:2), technical Malation, Dimethoate were the worth. It was recommended that Naled mixture can be used successfully in B. zonata male annihilation technique and renewed every two months. Lambada, Lebaycid, Sumithion, commercial Malathion (2:3) mixtures could be used with monthly renewal.
Highlights
Peach fruit fly (PFF), Bactrocera zonata (Saunders) (Diptera : Tephritidae) is considered one of the most economic important pests for several kinds of fruits in temperate, tropical and subtropical countries (Fletcher, 1987 and Younes et al, 2009)
Naled-methyl eugenol mixture exhibited the highest efficiency against B. zonata males in comparison with the mixtures of the other tested insecticides
EPPO (2002) reported that the insecticides used in Male annihilation technique (MAT) for B. zonata are generally organophosphorus compounds such as Malathion or Naled
Summary
Peach fruit fly (PFF), Bactrocera zonata (Saunders) (Diptera : Tephritidae) is considered one of the most economic important pests for several kinds of fruits in temperate, tropical and subtropical countries (Fletcher, 1987 and Younes et al, 2009). Male annihilation technique (MAT) (lure and kill) is a fruit fly control method removes male insects, reducing male population. This disturbs the male: female ratio and reduces the insect’s chances of mating and females produce very few progeny. The insecticides used in MAT are generally organophosphorus compounds, such as Naled, Malathion, and Dichlorvos (DDVP) (Vargas et al, 2003). This method is applied as spot treatments by using many dispensers as carriers of methyl eugenol and toxicant (such as cotton cord, neutral gel, plant fibers blocks and felt blocks). Male flies are attracted to the blocks, feed from their surfaces and killed (Stonehouse et al, 2002)
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