The species of Cicadellidae, Cixiidae and Delphacidae (Hemiptera) on Karacadag rice and the effects of weeds on their populations
The species of Cicadellidae, Cixiidae and Delphacidae (Hemiptera) on Karacadag rice and the effects of weeds on their populations were investigated in Diyarbakir and Sanliurfa provinces between 2010-2012. For specimen collection, sweep net and D.vac were used, and randomized complete block desing were employed by hanging yellow sticky traps for monitoring the populations of fluctations and densities of Cicadellidae and Delphacidae family in weedy and unweeded plots. A total of 17 species including 10 species belonging to Cicadellidae family, 3 species Ciixiidae and 4 species from Delphacidae were determined. The most abundant and common species were recorded to be Agallia harrarensis Melichar, 1911 and Empoasca sp., from Cicadellidae, Tachycixius desertorum (Fieber, 1876) and Hyalesthes obsoletus Signoret 1865 from Cixiidae, Laodelphax striatellus (Fallen), Sogotella vibix from Delphacidae family. It was determined that the weeds in rice increased the population of cicadellid and while 71.4% of individuals was captured from weedy plots, 28.6% was obtained from unweeded plots. The population of Delphacidae and Cixiidae were recorded slightly higher in weedy plots The population densities of Cicadellidae and Delphacidae began to increase starting from vegetative stage and reached to pick level at generative-maturity stage. It is suggested that the control of weeds must be performed strictly and to be considered in rice cultivated areas.
Karacadag rice, Oryza sativa, Cicadellidae, Cixiidae, Delphacidae, weed
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