Laju enkapsulasi parasitoid Anagyrus lopezi (De Santis) (Hymenoptera: Encyrtidae) oleh kutu putih singkong Phenacoccus manihoti Matile-Ferrero (Hemiptera: Pseudococcidae)

• Main Authors: Evie Adriani, Aunu Rauf, Pudjianto Pudjianto
• Format: Article
• Language: English
• Published: Perhimpunan Entomologi Indonesia 2017-06-01
• Series: Jurnal Entomologi Indonesia
• Subjects: Anagyrus lopezi, cassava mealybug, encapsulation, parasitoid, Phenacoccus manihoti
• Online Access: http://jurnal.pei-pusat.org/index.php/jei/article/view/123

<p>Parasitoid <em>Anagyrus lopezi</em> (De Santis) (Hymenoptera: Encyrtidae) was introduced into Indonesia in early 2014 to control the cassava mealybug, <em>Phenacoccus manihoti</em> Matile-Ferrero (Hemiptera: Pseudococcidae). The objective of study was to determine encapsulation rate of parasitoid <em>A. lopezi</em> by various host instars of <em>P. manihoti</em>. Observation of encapsulation rate was made  by exposing a single mated female of parasitoid on mealybug nymph-1, -2, -3, and adult in a plastic cage for 24 h. Mealybugs then were dissected and number of parasitoid eggs laid and those encapsulated were counted. Study revealed that rate of aggregate encapsulation was highest (8.4%) by adults, followed by nymph-3 (5.8%), nymph-2 (3.1%), and nymph-1 (1.1%). Rate of effective encapsulation by adults was 2.0%, whereas by nymphs about  1.0%. The low rate of encapsulation is believed not to reduce the effectiveness of parasitoid <em>A. lopezi</em> in the biological control of cassava mealybug <em>P. manihoti</em> in Indonesia.</p>