جستجوی مقالات مرتبط با کلیدواژه "noctuidae" در نشریات گروه "گیاهپزشکی"

The bordered straw, Heliothis peltigera (Denis & Schiffermüller) is a well-known agricultural pest of some economically important plants throughout the world and Iran. In this paper, suitable areas for the potential distribution of this species in Iran were predicted using MaxEnt model, R package and ArcGIS based on its occurrence data and the bioclimatic factors. Moreover, the important climatic factors affecting their potential distribution were investigated. Based on the results of this study, the most suitable areas for this species are Gilan and Mazandaran Provinces. Additionally, most parts of the Bushehr Province and southern parts of the Hormozgan Province as well as western parts of the West Azarbaijan, Kordestan and Kermanshah Provinces have suitable conditions compared with the other areas. The main environmental variables contributing their distribution were precipitation of the wettest quarter (bio16), average wind speed in August (wind8) and May (wind5), and isothermality (bio2/bio7) (bio3). Predicting the distribution of this pest in the areas with high cultivation of its main hosts, can be important in the development of pest control strategies, obviously.

Resistance development to both insecticides and transgenic crops has been frequently reported in Helicoverpa armigera populations, necessitating efforts to find new control measures. This study was aimed to evaluate the efficiency of attract and kill method using Noctovi®, a synthetic plant volatiles-based attractant for controlling H. armigera. In addition, the attractiveness of the Noctovi® for adults of H. armigera was evaluated under field conditions using delta traps. One liter per hectare of Noctovi® mixed with Permethrin, 5 ml A.I. or Thiodicarb, 7 ml A.I. was sprayed on tomato plants of the middle row (100 m length) just before sun set every two weeks. As infestation criteria, means percentages of infested tomatoes in attract & kill, insecticidal treatment and control (without any treatment application) plots were statistically compared. The results revealed that the Noctovi® was attractive for gravid females and males of H. armigera. Means percentages of infested tomatoes in attract & kill, insecticidal treatment and control (respectively 2.91±0.18, 4.68±0.24 and 5.14±0.28) were significantly different and the infestation in attract & kill treatment was significantly less than those of insecticidal treatment and control ones. At the same time, the infestation in insecticidal treatment was significantly less than that in control.