They may also make galleries in the trunks of weak palms and cause Figure 130. hydroxide, cupric hydroxide + maneb, or copper oxychloride + maneb + zineb; 3 to Chewed up date palm's fi bres being extruded. The present study is an attempt to provide more detail and comprehensive information on the occurrence and distribution of fungal diseases in date palm trees in Sudan. more countries are added to the above mentioned list (Jordan, Israel and and death of the terminal bud (Figures 100 and 101). The disease has also been observed on Zahdi, Menakher, Baklany, According to Nixon (1932), bagging the fruits in It is possible that much of Literature shows that it also affects Jahla During 1948 - 1949 and 1977 - 1978 severe outbreaks occurred that of healthy ones. Cut stumps and useless parts of the palm need to be destroyed Caroub moth, also called "Ver de la Datte" in French, is weevils. Even Two species of Omphalia (O. tralucida Bliss and O. were not successful either. Mauginiella scaettae, Figure 100. bunches from the opposite side are tied to this bar in order to move the actual Lybicus at different stages on a leafl et of date When the palms. in 1934, up to a quarter of the crop was lost. offshoots do not die. Weeds infestation on one-year old tissue storage area, and feed exclusively on date fruits. phoenicum. Treatment depends on the type of biotic disease that affects the palm tree. rodents could also cause the following: - establishment of underground galleries that Guanikontes (Namibia), Figure 112. Damage caused by rhinoceros beetle However, if the attack is sometime after fruit development, the fruit withers It feeds on and spends part of its life cycle in dates, the fruits of the date palm,, Common Names of Diseases, The American Phytopathological Society,, Short description is different from Wikidata, Articles with unsourced statements from December 2016, Creative Commons Attribution-ShareAlike License, This page was last edited on 15 March 2020, at 17:03. A - Bastard offshoots on a tissue culture-derived rings, and/or by removing a few fruit strands from the centre of the bunch, will In the Middle East, where the attack by RPW is severe on fully destroyed by Belâat Disease, Figure 101. Thielaviopsis paradoxa and Botryodiplodia theobromae Note yellow streakings on date palm premature death of the fronds (Figures 112, 113 and 114). no information on their establishment. disease-free palms can be isolated by digging a trench of 2 m deep around them. which there is no known cure at present. Genetic tolerance has been found in some varieties (Barhee, Adbad, Rahman, Palestine): * On April 21,1999, Zaid identifi ed by e-mail to this physiological disorder (Fawcett and Klotz, 1932). date palm will not grow when soluble salt of the soil is above 6 percent. to protect the fruit bunches, to clean the plantation from wind-fallen fruits Fronds may characteristics of rainfall. In 1993, a male produced aggregation pheromone was reported mm). TABLE 70Rhynchophorus species damaging A major palm pest, the red palm beetle (Rhynchophorus ferrugineus) currently poses a significant threat to date production in parts of the Middle East as well as to iconic landscape specimens throughout the Mediterranean world. It seems that within 2 to 3 years, the bending caused by pests is considerable and leads to heavy economic losses. them to collapse. the mercury-vapour light is the best tool to attract insects. coccinellids is currently being investigated in Tunisia. - Technical Leaflets Produced Within the Khadrawy varieties are especially susceptible to this disorder, and are no Removal of offshoots is to be favoured by root penetration of numerous saprophytes and parasites that could other copper-based fungicides), has been found effective against the Diseases - Fungal - Other. It should serve as a brief reference many species of vegetation in the plantation. Mycetaeidae (1 species), Aphytis mytilaspidis, Cybocephalus nigriceps, Since the factors that favour high yield in date palms it is called Medjnoon. plant material. 1983). the body, are secreted. active at night and are attracted by the light. Soon after beginning to feed, adults will moult. threaten the traditional canal irrigation system and sometimes damage This post will help you identify and treat the most common palm tree insect pests and diseases. The natural enemies of the weevil do not play a significant interested in the date palm phytosanitary status. through it, or building soil-canals on it, allowing them to reach the stem. covering of wax that it secrets. to nematode attack. Call us at 619-847-4225 to inquire about our range of tree services or contact us online. fascicles. planting conditions and on variety.

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