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Chestnut true cucumeris (Euseius castaneau) a predatory mite species of phytoseiid mites Branch real cucumeris is a recent study found, according to the preliminary study of the indoor, the predatory mite invasive pests - Western flower thrips certain The ability to control a development value and the potential role of biocontrol matter, therefore it is necessary to study their basic biology and experimental population ecology. Under laboratory conditions, combined with field investigation, observation to understand the the Li Zhen cucumeris basic biological habits, comparative study of functional response and smelt new small cucumeris on western flower thrips newly hatched larvae of western flower thrips the early larvae numerical response, newly hatched larvae and two-spotted spider mite mites prey selectivity and study of nine kinds of pollen with two-spotted spider mite the chestnut really sui mite growth and reproduction of the western flower thrips . The results are as follows: 1. The chestnut really sui mites male and female mating sexual reproduction. Lifetime total of more experienced egg, larva, the first mites, mites and mite five stages. Omnivorous and self-mutilation, feeding on spider mites, thrips, pollen, warehousing pests egg, lack of food, adult mites feeding on the young of this species of mites. Female adult mite life for multiple mating, like eggs in cotton tidbits filaments; Chestnut Park generally as mites overwinter overwintering sites include the acicular dry weeds, old bark and leaves of the chestnut tree blight on. Cucumber new small cucumeris, and Chestnut true cucumeris on western flower thrips functional response of newly hatched larvae are in line with Holling Ⅱ model, Na = 0.76Nt / (1 0.152Nt) and Na = 0.257 × Nt / (1 0.032Nt, ), western flower thrips attack rate of newly hatched larvae were 0.763 and 0.257, the processing time 0.199d and 0.125d, predation, respectively, 5.0 and 8.0. 3. Chestnut really sui mites prey predation rate and prey density relationship also consistent with Holling Ⅱ type equations, can be fitted: Na = 0.389 × Nt / (1 0.06Nt),; fecundity and prey density relationship is intended to be used logarithmic equation aggregate: y = 0.2309Ln (x) 0.0133. Numerical reaction is a positive density response. 4. While providing western flower thrips newly hatched larvae and two-spotted spider mite mites as food, both under the same density (10:10), hunger 24h after Li really cucumeris both prey showed the randomness (selective coefficient? 1:0.55 ± 0.05), the predator 2.3 and 1.9; When both the density ratio between 1:1 to 1:4, chestnut true cucumeris two prey predator still exhibit randomness; density ratio increased to 1:5, Li true cucumeris showed the two-spotted spider mite predator selectivity (selectivity coefficient? 1:0.29 ± 0.09). With the increase in the proportion of two prey density Li really sui mite, two-spotted spider mite feeding presents a linear growth trend, Holling Ⅱ type equation fitting obtained predatory mite Tetranychus urticae functional response equation: Na = 0.247 × Nt / (1 0.014Nt). Nine kinds of pollen (tea pollen, lotus flour, corn pollen, pollen Astragalus, Schisandra pollen, ginkgo pollen, pine pollen, rose powder, canola flower powder) and two-spotted spider mite make chestnut true cucumeris complete the entire life history, the male mites from egg to its developmental duration from 146 to 174h, and development to the female mite, calendar period from 156 to 192h. Tetranychus urticae as foodstuffs, and development to the male and female mite's life calendar period, respectively, 160h and 151h, Tea pollen, corn pollen and pine pollen for foodstuffs's not significant with the differences, but significantly with shorter than the other for the test pollen as foodstuffs Developmental period. Predatory mite with the same kinds of diets fed male mites the developmental duration than female mite short. Tea pollen, corn pollen and two-spotted spider mites as foodstuffs, Li true cucumeris fecundity were 3.9,4.3 and 5.1, significantly higher than with other pollen for the test as foodstuffs fecundity, and fed three diets, the predatory mites spawning period, spawning late life were significantly increased. Two-spotted spider mite feeding, the female mite spawning period and life are the longest, 6 and 19 days, respectively. Therefore, the two-spotted spider mites are still the chestnut really Sui mites feed, tea pollen, pine pollen and corn pollen can be used as alternative feed use.
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