| Titles |
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English :
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Ecological studies on the soft scale insect, Pulvinaria tenu ivalvata (Newstead) on sugarcanefields in Minia middle eypt region.
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| Abstract |
(Environmental studies on insect soft cortical Pulvinaria tenuivalvata (Newstead) In the cane fields region of central Egypt)
Has these studies over successive seasons 2000/2001, 2001/2002 The results showed that the activity of this insect was during summers and autumn and winter (fromMay until February), and has four generations per year and it takes one generation between 8-12 weeks in range of temperatures between 2 , 12-17 ° C and average relative humidity of 57%. Was the maximum count of the insect in early October (2293 insect / 100 sheets) and the end of November (1583 insect / 100 sheets) in the first year, and in mid-September (2601 insect / 100 sheets) and early November (2125 insect / 100 sheets) in the second year, where decreased the temperature to the lowest rate her while the relative humidity in the highest rate. combined effect of weather tested the numbers insect was high during the first season with him during the second season. these factors associated with each had more impact on the activity of the insect from the impact of each factor on its own, which led to the change in the amount of females and nymphs at the rate of 8 , 60.53 , 64%, 23 , 24.66 , 45% in both seasons, respectively. Also the population density of insect-related moral-old plants up to 210 days. And increasingly in the middle of cane fields. Yet there are differences not significant in the distribution of insect between north and south, east and west of the field. Noted that the highest census nymphs (66 , 48.68 , 65 Houry / paper) on the upper leaves of the plants reeds significant differences from other levels in both seasons, respectively. While females recorded higher full census on the leaves in the lower third of the plants (47 , 14 Female /paper) in the first season, and was the highest count (75 , 20 Female / paper) on the third Central plant in the first season while these differences exist in the secondseason. Could benefit from this study in that weather combined more impact on the activity and the amount of insect in addition to the age of the plants. Levels of growth of the plant affect the distribution numerical insect.
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| Publication year |
2002
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| Availability location |
معهد بحوث وقاية النباتات
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| Availability number |
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| Organization Name |
Plant Protection Research Institute (PPRI)
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| City |
القاهرة
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| serial title |
2nd international conference of plant protection research institute
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| Author(s) from ARC |
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| Agris Categories |
Protection of plants - General aspects
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AGROVOC
TERMS |
Pulvinaria.
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| Publication Type |
Conference/Workshop
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