| Autor: |
Farooq, Muhammad Asif, Atta, Bilal, Arif, Muhammad Jalal, Saleem, Muhammad Jawad, Ayub, Muhammad Ahsin, Akhtar, Muhammad Faheem, Ayyub, Muhammad Bilal, Nadeem, Sajid |
| Předmět: |
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| Zdroj: |
Pakistan Entomologist; 2019, Vol. 41 Issue 2, p79-86, 8p |
| Abstrakt: |
Thrips are serious pests of crops, vegetables and fruiting trees. Various species of thrips infest citrus at fruit formation as well as the new leaves sprouts. Their presence and damage ultimately reduce the export value of fruits, therefore, field studies were carried out to check the biodiversity of citrus thrips on a citrus cultivar fruiter early in experimental and commercial orchards of Faisalabad for pest abundance. Studies were focused on the population of thrips with particular reference to temperature and humidity population, ring spots formation on fruits and thus observe the causes of citrus blemishes in orchards in relation to insect pests. The species collected were identified with the help of available literature. Determining the relationship of citrus blemishes with respect to thrips showed that the temperature and relative humidity have a direct relation to the population of thrips. Results revealed that female and male thrips show significant relation to temperature and humidity on flowers, branches, fruits and leaves. Rainfall was significantly negatively correlated while highly significant in negative correlation on flowers, branches and leaves. Effect of humidity on the population of thrips was found significantly negatively correlated while the temperature was positively correlated with the different life stages of the population of thrips at different plant parts. It was conclusive from the study that the population of thrips was positively correlated with blemishes and ring spot formation of fruiter early. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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