(Neuroptera: Chrysopidae) fed with Aleurocanthus woglumi (Hemiptera: Aleyrodidae)
2016
Robério de Oliveira | Vinícius de Oliveira Barbosa | Daniele Lavra Vieira | Flávia Queiroz de Oliveira | Jacinto de Luna Batista | Carlos Henrique de Brito
<p>This study evaluated the development and reproduction of <em>Ceraeochrysa cubana </em>when fed the citrus blackfly <em>Aleurocanthus woglumi</em>. The study was carried out at the Laboratory of Entomology, Department of Plant and Environmental Sciences, Federal University of Paraíba – Areia/PB. It used a completely randomized design. The study was conducted in climate chambers, regulated to 26 ± 2°C and a relative humidity of 70 ± 10% with a 12 h photoperiod. The treatments were as follows: eggs, nymphs of only the 1st, 2nd, 3rd, or 4th instars, and nymphs of multiple instars (1st, 2nd, 3rd, and 4th instars) of <em>A. woglumi</em>, with eggs of <em>Sitotroga cerealella </em>as a control. The 1st instar of <em>C. cubana </em>lasted 5.8 to 10.7 days, the 2nd instar lasted 6.0 to 13.3 days, and the 3rd instar lasted 8.2 to 18.5 days. The larvae of <em>C. cubana </em>did not survive when the food provided was only the eggs of <em>A. woglumi</em>, since the predator could not eat them. <em>C. cubana</em>, when provided nymphs of multiple instars (1st, 2nd, 3rd, and 4th instars) of the citrus blackfly, had a shorter pre-pupal period and lower longevity than when consuming the eggs of <em>S. cerealella</em>, but the sex ratio and oviposition period were not affected. However, changes occurred in the pre-oviposition period, the total number of eggs, and the number of viable eggs.</p>
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