The article examines the reproduction, frequency, distribution, density, preventive measures against pests of some Magnolia species on a scientific basis. Pests belonging to the species of this genus have been observed to be Icerya purchasi Mack, 1878, Ceroplastes sinensis Guer., Tetranychus urticae Koch., Helix pomatia Lin., 1758 and Pseudomonas syringae van Hall 1904. On the basis of phytosanitary monitoring, route observations and stationary examinations of magnolia plants grown in the experimental fields of the Institute of Dendrology in Absheron Peninsula (2020-2021), plant samples infected with pests and pathogens were collected and systematically analyzed. As a result of the monitoring of pests, magnolias were first discovered in Absheron: Icerya purchasi, Ceroplastes sinensis, Tetranychus urticae, Helix pomatia. Some bioecological features of the dangerous larvae of Icerya purchasi and Ceroplastes sinensis have been revealed. For the first time, a number of promising insecticides against their larvae have been selected. The data on the experimental work on the selection of drugs and their concentration as the most effective measure to control pest species are presented. The reason for the weakening of plants, and sometimes their death, is a complex of factors of negative impact: biotic – harmful arthropods and damage by various diseases; abiotic – unfavorable climatic conditions; anthropogenic – violation of the soil cover and natural herbaceous vegetation, insufficient and untimely care of plants due to the limited funds allocated for this purpose.
Magnolia L., vreditel', bolezn', nasekomoe, yayco, lichinka
1. Asadov G. G., Bagirova S. B., Mirdzhalally I. B., Efendieva R. R., Ataeva H. M. Soleustoychivost' introducirovannyh drevesno-kustarnikovyh vidov na zasolennyh pochvah Apsheronskogo poluostrova Azerbaydzhana // Byulleten' nauki i praktiki. 2021. T. 7. №2. S. 52-60. https://doi.org/10.33619/2414-2948/63/04
2. Borhsenius N.S. Chervecy i shitovki SSSR (Sossoidea). Opredelitel' fauny SSSR. M.-L., 1950.
3. Gar K.A. Metody ispytaniya toksichnosti i effektivnosti insekticidov. M.,1963.
4. Garshina T.D. Bolezni parkovyh rasteniy i mery s nimi. Krasnodar, 1961. 28 s.
5. Ivanova N.A. Metodicheskie ukazaniya po provedeniyu proizvodstvennyh i polevyh ispytaniy novyh insekticidov i akaricidov v plodovom sadu.L.: VASHNIL VIZR. 1961.
6. Ignat'eva T.N., Kashutina E.V., Yasyuk L.V., Heyshho I.V. Effektivnost' introducirovannogo parazita yaponskoy voskovoy lozhnoschitovki – Microterys clauseni Comp na Chernomorskom poberezh'e Krasnodarskogo kraya // Mezhdunarodnyy nauchno-issledovatel'skiy zhurnal. 2018. №12-2. S. 22-25. https://doi.org/10.23670/IRJ.2018.78.12.040
7. Kuznecov N.N., Tkachuk V.K., Lazarev M.A. Metodicheskie rekomendacii po opredeleniyu i izucheniyu kokcid i tley hvoynyy porod Kryma i meram bor'by s nimi. Yalta. 1981.
8. Leley A.S. Opredelitel' nasekomye Dal'nogo Vostoka Rossii. Dopol'nitel'nyy tom. Analiz fauny i obschiy ukazatel' nazvaniy. Vladivostok: Dal'nauka, 2011. 55 c.
9. Mamedov Z.M., Cafarova E.F. Osnovnye sosuschie vrediteli (Homoptera, Aphididae, Aleyrodidae, Coccoidae) dekorativnyh rasteniy na Apsheronskom poluostrove Azerbaydzhana // Yug Rossii: ekologiya, razvitie. 2014. T. 7. №3. S. 44-48.
10. Opredelitel' vrednyh i poleznyh nasokomyh i kleschey tehnicheskih kul'tur v SSSR. L., 1981.
11. Polyakov I.Ya., Persov M.P., Smirnov V.A. Prognoz razvitiya vrediteley i bolezney sel'skohozyaystvennyh kul'tur. L: Kolos,1984.
12. Safarov A.Yu. K izucheniyu biologii fioletovoy schitovki (Parlatoriaoleae colvee) na masline v usloviyah Apsherona Azerbaydzhanskoy SSR // Uchenye zapiski Azerbaydzhanskogo SHI imeni S. Agamalyogly. 1974. №6. S. 41-45.
13. Hadzhibeyli Z. Kokcidy subtropicheskoy zony Gruzii. Tbilisi, 1983.
14. Hohryakov M.K., Dobrozrakova T.L., Stepanov K.M., Letova M.F. Opreditel' bolezney rasteniy. SPb., 2003yu 592 s.
15. Askerova P. Stages of Phenological Development of the Magnolia L. Some Species in Absheron // Byulleten' nauki i praktiki. 2022. T. 8. №2. S. 47-54. https://doi.org/10.33619/2414-2948/75/06
16. Azuma H., Thien L.B., Toyota M., Asakawa Y., Kawano S. Distribution and differential expression of (E)-4, 8-dimethyl-1, 3, 7-nonatriene in leaf and floral volatiles of Magnolia and Liriodendron taxa // Journal of Chemical Ecology. 1997. T. 23. №11. S. 2467-2478. https://doi.org/10.1023/B:JOEC.0000006660.84363.1b
17. 117. Chen Y.H., Lu M.H., Guo D.S., Zhai Y.Y., Miao D., Yue J.Y., An D.R. Antifungal effect of magnolol and honokiol from Magnolia officinalis on Alternaria alternata causing tobacco brown spot // Molecules. 2019. Vol. 24. №11. P. 2140. https://doi.org/10.3390/molecules24112140
18. Diagne A., Story R. N., Hammond A. M. Adult Phyllophaga ephilida host plant feeding preference // Florida Entomologist. 2006. Vol. 89. №3. P. 391-395. https://doi.org/10.1080/00021369.1975.10861751
19. Dirr M. A. Manual of woody landscape plants: their identification, ornamental characteristics, culture, propagation and uses // Manual of woody landscape plants: their identification, ornamental characteristics, culture, propagation and uses. 1998. №Ed. 2.
20. Held D.W. Relative susceptibility of woody landscape plants to Japanese beetle (Coleoptera: Scarabaeidae) // Journal of Arboriculture. 2004. Vol. 30. №6. P. 328-335.
21. Knox G.W., Klingeman W.E., Paret M., Fulcher A. Management of pests, plant diseases and abiotic disorders of Magnolia species in the Southeastern United States: A review // Journal of Environmental Horticulture. 2012. Vol. 30. №4. P. 223-234. https://doi.org/10.24266/0738-2898.30.4.223
22. Li G.H., Dang L.Z., Hong L.J., Zheng L.J., Liu F.F., Li L., Zhang K.Q. Nematicidal activity of honokiol and magnolol isolated from Magnolia tripetala // Journal of phytopathology. 2009. Vol. 157. №6. P. 390-392.
23. Mustafayeva G., Mustafayeva I., Abasova N., Aslanova G. Armored scale insects (Hemiptera: Diaspididae) andlecanium (Hemiptera: Lecaniidae) damaging subtropical plants in Azerbaijan // Journal of Entomology and Zoology Studies. 2019. Vol. 7. №2. P. 1204-1207.
24. Nitao J.K., Nair M.G., Thorogood D.L., Johnson K.S., Scriber J.M. Bioactive neolignans from the leaves of Magnolia virginiana // Phytochemistry. 1991. Vol. 30. №7. P. 2193-2195. https://doi.org/10.1111/j.1439-0434.2008.01507.x
25. Peterson N. C., Smitley D. R. Susceptibility of selected shade and flowering trees to gypsy moth (Lepidoptera: Lymantriidae) // Journal of economic entomology. 1991. Vol. 84. №2. P. 587-592. https://doi.org/10.1093/jee/84.2.587
26. Werle C. T. Insects associated with southern magnolia (Magnolia grandiflora L.) in East Tennessee. 2002.
