Linking pollen quality and performance of Neoseiulus californicus (Acari: Phytoseiidae) in two-spotted spider mite management programmes.
BACKGROUND
It has been shown that pollen as a dietary supplement may increase the establishment of generalist predatory mites, and therefore pest control by these mites can be provided. Life table studies were performed to evaluate the nutritional value of seven different pollens (almond, castor-bean, date-palm, maize, bitter-orange, sunflower and mixed bee pollen) as a supplementary food source for the spider mite predator Neoseiulus californicus McGregor. In addition, the nutritional quality of each pollen species was assessed through morphological and chemical analysis.


RESULTS
Preadult duration was longer when the predator fed on castor-bean pollen (10.01 days) and bee pollen (9.94 days) compared with the others (5.58-7.27 days). The cohort reared on almond pollen had the highest intrinsic rate of increase (r) (0.231 day-1), and those on mixed bee pollen had the lowest r (0.005 day-1). The levels of nutritional content (sugar, lipid and protein) were significantly different among tested pollens.


CONCLUSIONS
Comparison of N. californicus life table parameters on different diets revealed that the almond pollen (and after that the maize pollen) was a more suitable diet than the others. These findings will be useful in developing appropriate strategies for conservation of N. californicus to control spider mites. © 2016 Society of Chemical Industry.
Department of Entomology, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran.
Mostafa
M
Khanamani
Department of Entomology, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran.
Yaghoub
Y
Fathipour
Department of Entomology, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran.
Ali Asghar
AA
Talebi
Department of Entomology, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran.
Mohammad
M
Mehrabadi
D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D008925:Mites / Q000254:growth & development*; D010572:Pest Control, Biological / Q000379:methods*; D011058:Pollen / Q000737:chemistry*; D011235:Predatory Behavior
Neoseiulus californicus; life table; mass rearing; pollen; supplementary diet