| The side effects of ten commercial pesticide formulations on, the green lacewing, Chrysoperla carnea (Stephens) (Neuroptera: Chrysopidae) |
| Paper ID : 1033-ISCBAS |
| Authors |
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Shaimaa Hamed Hasn Mohammed *1, Ramadan El- Kholy2, Hanaa E Mahmoud3, Aziza E Abd El- Baset13 1Al- Azhar University 2Faculty of Science- Al- Azhar University 3Zoology and Entomology Department , Faculty of Sciences , Al-Azhar University |
| Abstract |
| The Toxic effects of ten commercial pesticides (Garden Blue, Kuick, Mon-Big, New-Tegrox, Pyra-Blue, Propimax, Fungimorth, Atramactine, Mite Bro; and Kalash were evaluated on green lacewing, Chrysoperla carnea. The percent mortality was determined for tested pesticides by leaf dip bioassay and by eggs, of the Sitotroga cerealella, immersion (as food). The LC50values of pesticides were varied between pesticides. These values were 520, 120, 6000, 3500, 5600, 5000, 3000, 40, 240; and 650ppm, respectively after 72h post treatments for eggs immersion of S. cerealella (feed). The corresponding LC50 in the case of exposed to leaves treated with pesticides were: 200, 80, 210, 230, 260, 1500, 3400, 30, 180 and 400ppm, respectively. The results clearly indicated that direct action by leaf dip technique was more toxic than indirect action by eggs immersion of S. cerealella. All experiments were studied on 2nd larval instar of C. carnea (1 day old). The rate of application for all the tested pesticides was evaluated at the recommended dose. The rate of application in the field for 2nd larval instar of the green lacewing was studied in 200L.water fed.-1. The rates were 200cm3, 300gm, 1liter, 1liter, 150cm3, 500cm3, 500cm3, 100cm3, 70cm3 and 100gm product. The mortality was recorded after 1, 3, 5 and 7 days after exposure to pesticides. Also, these pesticides reduced pupation and adult emergence. The highest reduction was more obvious with Garden Blue and Kuick (insecticides) and with Mon Big, New-Tegrox (herbicides) and with Pyra-Blue (fungicide) and with Atramactine (acaricide). |
| Keywords |
| Toxicity, Pesticides, side effects, green lacewing, Chrysoperla carnea |
| Status: Abstract Accepted (Poster Presentation) |