Abstract
Natural Enemies Conservation: The Role of Neem-seed Extracts for Natural Enemies Conservation Used of Cotton Insect Pest Control. Insects associated with cotton plant are numerous, as the plant bears extrafloral nectar. More than 90 species of natural enemies are reported and identified. They could manage the cotton pest, keeping the pest population is under action threshold level when their presence is considered in scouting and action threshold concept. However, most of cotton farmers are insecticide-spray-minded people who think that insecticide sprays is a must in cotton cultivation. This behavior is unfavorable for the natural enemies in building their population so they can act as an effective mortality factor for the pest. Neem seed extract (NSE) is toxic to herbivores but relatively safe for natural enemies, so that it could be used as a substitute for synthetic chemical insecticides. Therefore, NSE is recommended to be used for conserving natural enemies in cotton agro ecosystem.
Highlights
Natural Enemies Conservation: The Role of Neem-seed Extracts for Natural Enemies Conservation Used of Cotton Insect Pest Control
Insects associated with cotton plant are numerous, as the plant bears extrafloral nectar
Most of cotton farmers are insecticide-spray-minded people who think that insecticide sprays is a must in cotton cultivation
Summary
Pengaruh SBM dan insektisida sintetik (asefat & deltametrin) terhadap populasi H. armigera di pertanaman kapas Asembagus, Situbondo (Nurindah et al 2004). Pengaruh SBM dan insektisida sintetik (asefat & deltametrin) terhadap populasi kompleks predator di pertanaman kapas Asembagus, Situbondo (Sunarto et al 2002). Terhadap aktivitas parasitisasi Diaeretiella rapae terhadap Myzus persicae (Lowery & Isman 1995). Ekstrak mimba juga tidak mempunyai efek negatif terhadap parasitoid larva Plutella xylostella, yaitu Diadromus collaris (Gravenhorst) dan bahkan mempunyai efek sinergis terhadap parasitasi Cyrtopeltis plutellae (Kraees & Cullen 2008; Charleston et al 2005). Berdasarkan kenyataankenyataan ini dapat dinyatakan bahwa EBM cukup aman bagi musuh alami dan dapat dipadukan dalam pengendalian hayati
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