C Seasonal Abundance Of Pulvinaria Psidii Maskel Stages And Total Population Infest Guava Trees At Qaliobiya Governorate

2202 words - 9 pages

C-Seasonal abundance of Pulvinaria psidii Maskel stages and total population infest guava trees at Qaliobiya governorate:
Seasonal abundance of P. psidii different stages and total population infesting guava trees at Qaliobiya governorate from 1st April 2005 till mid March 2007 were investigated and tabulated in tables (XVII &XVIII) and graphically illustrated in fig (87-9)
Seasonal fluctuation of ovisacs:
The results in the tables (XVII) and figure (87) proved that, the P. psidii ovisacs have regular occurrence all over the year, except during the end of each year (from 1st January till 1st April) where the number were very low. Also there were a moderate three highness in number egg sacs after that the number is decreased followed that peaks in egg population were achieved. The 1st peak was at mid June (19 ovi sacs/leaf), the 2nd peak at mid August (15 ovisacs/leaf) and the 3rd peak occurred at 1st Nov. with (14 ovisacs/leaf).
Also during second year of study we found three peaks which were recorded at 1st July (12 ovsac / leaf), mid September (18 ovsac / leaf) and 1st December (13 ovsac / leaf) respectively. As we refereed proceeding after the three peaks at the end of second year the numbers of the ovisacs were very low till the end of the year.
Seasonal fluctuation of preadult:
Considering the data of the first year (2005-2006) that shown in the same tables and graphically in Figure (88), it could be detected that nymphal stage had three apexes were achieved during 1st May, 1st August and mid of October 2005 with 320, 285 and 223 nymphs / leaf respectively. The results obtained in the second year (2006-2007) which illustrated in the same table & Fig .demonstrated that P. psidii nymphal stage of recorded three apexes 277, 147 and 290 nymph / leaf which appreciated during the 1st May , mid July and mid September 2006 respectively. The nymphal stage turned has continued decreasing period elongated from mid Jan. till mid March (end of the year) during the first and second studied years.
Seasonal fluctuation of adult females:
The data of the first studied year (2005-2006), that presented in the same tables and illustrated in Fig (89) published the presence of three distinct peaks for P. psidii adult females whish were recorded as follows; the first peak at the mid June with (24 ad. fem./leaf). The second peak, was at the first September (27 ad.fem./leaf) and the last and highest peak was at first December, (36 ad. fem. /leaf). Also data clearly showed there were three deperson periods at 1st May (6 adult/leaf), 1st October (5 adult/leaf) and the deepest one at mid March (2006) (1 ad. fem. /leaf).
The data of the second year of investigation (2006-2007) mentioned that there were three distinct peaks; the first peak was at 1st July (39 adult/leaf), the second and the highest peak at 1st Sep. (40 adult/leaf) and the last peak it wasn't the highest but the longest one, it recorded at mid Nov....

Find Another Essay On C-Seasonal Abundance of Pulvinaria Psidii Maskel Stages and Total Population Infest Guava Trees at Qaliobiya Governorate

Robert Frost Poems Comparative Essay - The Sound of the Trees and Tree at my Window

2844 words - 11 pages Untitled In The Sound of the Trees and Tree at my Window, Robert Frost employs structure and imagery to show how observing a tree inspires though in the narrator's. In The Sound of the Trees, the narrator contrasts his own experience and his way of seeing the world with an imagined way of how the tree experiences the world. However, all the imagining happens solely in the narrators' mind. Similarly, in Tree at my Window, the

Processes and Stages of Memory Essay

1874 words - 7 pages better long-term memory (Wood, et al., 2011, p.207-209). In conclusion, this paper discusses memory as the different processes and stages of memory, why we forget, ways to improve, and strategies to help enhance the memory. The main idea I learned about the research is that memory can be studied at various different aspects, either it be remembering, improving memory, or forgetting. Memory is one of the most neurological parts of the body that

Briefly discuss the stages of the lifespan. Choose one stage and discuss the needs of a person at this stage

1132 words - 5 pages *Briefly discuss the stages of the lifespan, 1 paragraph for each stage. Choose 1 and discuss the needs of a person at this stage.Lifespan refers to human growth and development, beginning at conception and progressing until death. There are seven stages within the lifespan process consisting of conception, infancy, childhood, adolescence, young adulthood, middle adulthood and the aged. Individuals will move at their own pace through these

Major Events Influencing the Abundance and Distribution of Shallow-Water Octocorals

1468 words - 6 pages . Pap. Tortugas Lab. Colella, M. A., et al. (2012). Cold-water event of January 2010 results in catastrophic benthic mortality on patch reefs in the Florida Keys. Coral Reefs, 31(2), 621-632. doi: 10.1007/s00338-012-0880-5 Connell, J. H., et al. (1997). A 30-year study of coral abundance, recruitment, and disturbance at several scales in space and time. Ecological Monographs, 67(4), 461-488. Davis, G. E. (1982). A century of natural change in

Seasonal Affective Disorder: A Clear Link Between the Outside and the Inside of the Brain

2529 words - 10 pages , as a regulating feature of the nervous system, is clearly and strongly influenced by cues from the world outside. Defining Seasonal Affective Disorder is somewhat more complicated than it may seem at first glance. It is generally thought to be a recurring fall/winter depression experienced by susceptible people, those with a lower threshold for light-associated depression. SAD affects approximately 35 million Americans, 10 million with the

Stages of Adulthood - Descriptions and Categories

601 words - 2 pages Adulthood is a the longest period in life which for the purposes of clarity has been broken into three periods. The three stages of adulthood are young (21-35), middle (35-65), and older (65+ ). Young adulthood is the period when you may experience good health, a career, marriage, children, and/or financial independence resulting from financial success. Middle adulthood brings greater financial security and emotional maturity and satisfaction

The Speaker of Birch Trees Having Symbols and Images

851 words - 4 pages “Birches” is a poem written by Robert Frost that has a speaker, imagery, and symbols. The speaker in this poem is Robert. He explains his perspective of the birch trees in first person. Imagery is a word, phrase, or sentence that shows an experience or object. There are many examples of imagery in this poem. Symbols are something in the story that stand for something else. There are many symbols in “Birches.” In “Birches” Robert talks about how

The Stages of Cellular Respiration and Photosynthesis

768 words - 3 pages The Cellular respiration and photosynthesis form a critical cycle of energy and matter that supports the continued existence of life on earth. Describe the stages of cellular respiration and photosynthesis and their interaction and interdependence including raw materials, products, and amount of ATP or glucose produced during each phase. How is each linked to specific organelles within the eukaryotic cell? What has been the importance and

Field study of biotic and abiotic factors affecting abundance and distribution of mangroves in Sydney Olympic park mangrove reserve

1728 words - 7 pages abundance of a plant and animal population chosen was the quadrat method which involves a 1 square metre quadrat. This method is only suitable for plants and slow moving organisms. The occurrence of organisms in the quadrat is recorded and the repeated a number of times. Individual species can be counted if in small numbers or percentage cover can be calculated for larger numbers by estimating the percentage cover for each quadrat and then

The local ecosystem of Mt keira. plant adaptations and abundance as well as human impacts on the environment

1273 words - 5 pages typei) Total amount counted in class[total from all 11 groups]ii) Population in 100 square metres[ i) ÷ amount of quadrants(11)]iii) Population in 1 hectare[ ii) x 9.8 x 100]a) Moreton Bay Fig77 ÷ 11 = 0.640.64 x 9.4 x 100 = 601.6b) Brown Beech2626 ÷ 11 = 2.362.36 x 9.4 x 100 = 2218.4c) Cabbage Tree Palm2424 ÷ 11 = 2.182.18 x 9.4 x 100 = 2049.2d) Sassafrat1717 ÷ 11 = 1.551.55 x 9.4 x 100 = 1457The abundance of the

Division and Classification Essay of the Stages of Growing Up

1287 words - 5 pages . These stages allow for progress and growth of the mind, body, and soul of an individual. It gives the ample time needed to grow up and let a person truly discover himself. Without these steps, a person may be left confused, skeptical, and doubtful in the manner of which he lived his life. These steps, although big and scary at times, are the support system in which a person may grow up and have children of their own, who will proceed through the same exact process.

Similar Essays

Seasonal Abundance Of A Maskel Or Oystershell Scale Lepidosaphes Pallidula (Williams) Infesting Mango Trees At Qaliobiya Governorate

1527 words - 6 pages abdominal segments; and the 3rd & 4th abdominal segments with 3-6 marginal gland spines on either side. so the seasonal fluctuation is studied. Seasonal fluctuations of a Maskel or Oystershell scale Lepidosaphes pallidula (Williams) stages and total population infesting mango trees at Qaliobiya Governorate during two studied years from 1st January 2005 till mid December 2006 as shown in tables VIII & IX and illustrated in figures from 53 to 58

Pests That Infest Mango And Guava Trees Under Field Condition At Qaliobiya Governorate

1499 words - 6 pages . 3- Pulvinaria psidii ( Mask ) is the most important soft scale insects infesting mango and guava trees at Qaliobiya governorate. The natural enemies, the predators and parasites, associated with these three species are collected and identified. The diagnosis and figures to these natural enemies are introduced. In addition to the effect of these enemies and the other climatic factors on

Ecological Studies On The Scale Insects Infest Guava Trees At Qaliobiya Governorate

1417 words - 6 pages 2- Ecological studies on the scale insects infest guava trees at Qaliobiya governorate. A- Survey of scale insects infest guava trees at Qaliobiya governorate. This work is carried out during the two studied years, from August 2005 to July 2007, through twice visits monthly to the three areas from (EL-Khanka, Shebeen EL-Qanater & Benha orchard).The collected species were listed in table XII & illustrated in figures 62-66. 1-EL-Khanka

Biography Of Paul Gauguin And Analysis Of His Painting Apple Trees At L. Hermitage

808 words - 4 pages Introduction My favorite painting is Apple Trees At L Hermitage by PAUL GAUGUIN ,the most famous painter of his age .This masterpiece represents his attitude towards drawing landscapes .This painting was accomplished in 1879 .The material used was Oil on canvas .It was accomplished in Paris . Now ,It can be found in Philadelphia Museum of Art, United States. I mostly like this portrait as it is highly expressive of ruler life , meadows and