Influence of phosphine on hatching of Cryptolestes ferrugineus (Coleoptera: Cucujidae), Lasioderma serricorne (Coleoptera: Anobiidae) and Oryzaephilus surinamensis (Coleoptera: Silvanidae)

• Published in: Pest management science 2004-11, Vol.60 (11), p.1114-1118
• Main Authors: Rajendran, S, Parveen, H, Begum, K, Chethana, R
• Format: Article
• Language: English
• Subjects: abnormal development; Animals; Biological and medical sciences; Coleoptera - drug effects; Coleoptera - physiology; Cryptolestes ferrugineus; Dose-Response Relationship, Drug; egg hatch; Female; Fumigation; Fundamental and applied biological sciences. Psychology; hatching; insect control; Insecticide Resistance; Insecticides - pharmacology; Invertebrates; Lasioderma serricorne; mechanism of action; Medically important nuisances and vectors, pests of stored products and materials: population survey and control; mortality; Oryzaephilus surinamensis; ova; Ovum - drug effects; Ovum - physiology; Pests of stored products; phosphine; Phosphines - pharmacology; rice; storage insects; stored product insects; tobacco; wheat
• ISSN: 1526-498X; 1526-4998
• DOI: 10.1002/ps.931

The hatching and mortality response of 0- to 48-h-old eggs of field strains of the stored-product insects Cryptolestes ferrugineus (Stephens), Lasioderma serricorne (F) and Oryzaephilus surinamensis (L) following phosphine fumigation for 24, 48 or 120 h at 27 (±2) °C was investigated. Hatching was delayed and reduced in the first few days in a phosphine-resistant strain of C ferrugineus that was treated with 2.0-7.0 mg litre-1 doses for 48 h (5-80% mortality) and with 1.0-2.0 mg litre-1 for 120 h (44-84% mortality). In both the exposures there were significant increases in hatching on later days when compared with the corresponding controls. Developmental delay was, however, not evident in susceptible strains of C ferrugineus, L serricorne and O surinamensis that were exposed to phosphine for 24 h.