Pesticide efficacy of local save materials : mineral oils and surfactant against broccoli pests

الملخص EN

Broccoli is a cruciferous vegetable that is a nutritional powerhouse and it infested by different insect pests.

Pesticidal efficiency of some local materials: mineral oils (CAPL-1, CAPL-2) and surfactant (Sisi-6) were determined against both whitefly, Bemisia tabaci (Gennadius) (Hemiptera :Aleyrodidae) (adult and nymphs) and cotton leafworm, Spodoptera littoralis (Boisduval) (Lepidoptera: Noctuidae) (larvae).

Obtained results indicated that all tested materials showed succeded effect against to both two stages of whitefly at all tested concentrations 1.0,1.5 and 2.0% (V./V.) since they gave initial effect ≥ and equal 70% reduction and mean residual effect ≥ and equal 40% reduction of live individual / leaf, therefore 1% concentration is perferred for controling this pest for economic consideration.

On the other hand, results of toxicity against second instar larvae of cotton leafworm as expressed by LC50’s and toxicity indexes indicated that all tested materials showed toxicity effect, onar gave the highest toxic effect followed by surfactant Sisi-6 and mineral oils CAPL-1 and CAPL-2, also results indicated that tested materials showed latent toxic effect against larvae , pupae and moth emergency since they reduced percent moth emergency therefore they cause of broken of lifecycle of insect, onar showed the highest effect followed by surfactant Sisi-6 and mineral oils CAPL-1 and CAPL-2.