Study the Effects of Dusts Phenomenon on Date Palm Important Pests and Diseases

Select Volume / Issue:

• Volume 2,Issue 1, Jan. 2015

Year:

2015

Type of Publication:

Article

Keywords:

Date, Injurious Factors, Dust

Authors:

Latifian, Masoud

Journal:

IJRAS

Volume:

2

Number:

1

Pages:

8-15

Month:

Jan.-Feb.

ISSN:

2348- –

Note:

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. CC BY-NC-SA 4.0 Creative Commons License: https://creativecommons.org/licenses/by-nc-sa/4.0/

Abstract:

The lesser moth (Batrachedra amydraula. Myer), spider mite (Oligonychus afrasiaticus (McGregor), date bunch fading and Khamedje disease (Mauginiella scaettae Cavara) are important injurious factors of date palm. This research has been carried out in Abadan region from 2001 to 2009 for 9 years. The aim of this research was study the effects of dust phenomena on date palm pests and diseases severity. Samples were taken monthly from 10 trees located in four different date palm orchards of four villages. The climatic data including maximum distance vision, the number incidence and the gravity of phenomena were obtained from Abadan meteorology station. Results showed that the injurious factors damages started at March and increased gradually by increasing temperature and relative humidity of weather so that the lesser moth, spider mite, date bunch fading and Khamedje disease injuries reached to the peak values in July, June, July, September and April respectively. The Dust phenomena indicators showed moderate to strong correlation with occurrence of studied pests and diseases. So that the dust phenomenon had significantly increased effects on the incidence of Date bunch feding and spider mite. The dust phenomena effects model for forecasting the lesser moth, spider mite, bunch feding and Khamedje disease were significant at 5, 1, 5 and 1 percent level respectively. All of the forecasting models had coefficient higher than 0.6 and the detection error less than 25 percent for spider mite and Khamedje disease and more than 25 percent for the lesser moth and bunch feding. The dust phenomenon had the highest increasing effects on the incidence of the spider mite (33.49) and the lowest effect on the lesser moth (3.77).

Full text: IJRAS-182_finaL.pdf [Bibtex]