SPECIES DIVERSITY AND POPULATION FLUCTUATION OF HETEROPTERA PREDATORS IN RICE FIELDS OF MAZANDARAN PROVINCE, NORTHERN IRAN

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GHAHARI HASSAN; OSTOVAN HADI; TABARI MEHRDAD

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Journal: PLANT PROTECTION JOURNAL Year:2009 | Volume:1 | Issue:1 Page(s): 27-41

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Title

SPECIES DIVERSITY AND POPULATION FLUCTUATION OF HETEROPTERA PREDATORS IN RICE FIELDS OF MAZANDARAN PROVINCE, NORTHERN IRAN

Author(s)

GHAHARI HASSAN | OSTOVAN HADI | TABARI MEHRDAD | Issue Writer Certificate

Keywords

PREDATOR HETEROPTERAQ2

POPULATION FLUCTUATIONQ2

RICEQ2

MAZANDARANQ2

Abstract

The predator bugs (Heteroptera) are one of the powerful natural enemies in almost agro-ecosystems which have important role in biological control programs. In attention to presence of diverse pests in RICE fields and importance of this crop as the main food in Northern Iran, species diversity and POPULATION FLUCTUATION of predator bugs were studied in RICE fields of MAZANDARAN province through 2005-2006. In a total, 20 species of predator bugs were collected and identified from RICE fields of MAZANDARAN province. Of the collected species, eight species including, Oncocephalus pilicornis Reuter, Oncocephalus plumicornis(Germar), Reduvius pallipes Klug, Rhynocoris iracundus (Poda) andCoranus cf. niger Rambur of family Reduviidae, Stenodema calcaratum (Fieb.), Orthotylus flavosparsus (C.Sahlb.) of family Miridae, and Brachynema puncticornisRt. of family Pentatomidae are newly recorded from Iran. The results of POPULATION FLUCTUATION indicated that the density of predator bugs increases through the crop season gradually, but application of insecticides causes damage to the density population severely. Also, the population density of predator bugs was varied through a day; the most abundant of population was obtained in hours 10 and 18, because of moderate climate. These beneficial insects rest beyond the RICE seedlings and among the weeds around the fields through the hours 12-16, because of high temperature and humidity in RICE fields. The results of population density of predator bugs on three RICE varieties including, Fajr, Khazar, and Nemat indicated that highest density was obtained from Fajr and there was not significant difference between the two other varieties. Sincethe Fajr is a sensitive variety toC. suppressalis and the pest population density on it is higher than other studied varieties, there is higher density of heteropteran predators on this variety than the two others.

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APA: Copy

GHAHARI, HASSAN, OSTOVAN, HADI, & TABARI, MEHRDAD. (2009). SPECIES DIVERSITY AND POPULATION FLUCTUATION OF HETEROPTERA PREDATORS IN RICE FIELDS OF MAZANDARAN PROVINCE, NORTHERN IRAN. PLANT PROTECTION JOURNAL, 1(1), 27-41. SID. https://sid.ir/paper/194034/en

Vancouver: Copy

GHAHARI HASSAN, OSTOVAN HADI, TABARI MEHRDAD. SPECIES DIVERSITY AND POPULATION FLUCTUATION OF HETEROPTERA PREDATORS IN RICE FIELDS OF MAZANDARAN PROVINCE, NORTHERN IRAN. PLANT PROTECTION JOURNAL[Internet]. 2009;1(1):27-41. Available from: https://sid.ir/paper/194034/en

IEEE: Copy

HASSAN GHAHARI, HADI OSTOVAN, and MEHRDAD TABARI, “SPECIES DIVERSITY AND POPULATION FLUCTUATION OF HETEROPTERA PREDATORS IN RICE FIELDS OF MAZANDARAN PROVINCE, NORTHERN IRAN,” PLANT PROTECTION JOURNAL, vol. 1, no. 1, pp. 27–41, 2009, [Online]. Available: https://sid.ir/paper/194034/en

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