scholarly journals THE INFLUENCE OF DIFFERENT PHYTOPROTECTION SYSTEMS ON ENTOMOFAGE FAUNA IN APPLE PLANTATION

2021 ◽  
Vol 37 (37) ◽  
pp. 115-122
Author(s):  
Mihaela Sumedrea ◽  
◽  
Florin Cristian Marin ◽  
Mirela Calinescu ◽  
◽  
...  

The paper presents data on the diversity of entomophagous fauna in an ecologically managed apple plantation, as well as aspects regarding the differences found in the structure of the entomophagous complex in three variants of phytoprotection technologies: "Ecological", "Biotechnical" and "Chemical standard". The study was carried out during the years 2019-2020, at the Research Institute for Fruit Growing Pitesti, in a plot aged 12 years. The evaluations were performed both in the field, visually and in the laboratory, at binocular magnifier. As a result of this study, a number of 6 species of predatory insects were identified: Chrysopa carnea, Coccinella septempunctata, Adalia decempunctata, Anthocoris sp., Phytoseiulus persimilis and Aphidoletes aphidimyza, were mainly from the Orders Mesostigmata, Coleoptera, Neuroptera, Diptera and Hemiptera.

2008 ◽  
Vol 14 (1-2.) ◽  
Author(s):  
J. Apostol

Description of new sour cherry cultivars and cultivar candidates bred in the Research Institute for the Fruit Growing and Ornamentals


2019 ◽  
Vol 11 (4) ◽  
pp. 42
Author(s):  
Kahramon B. Razzakov ◽  
Ikram. I. Abdullaev ◽  
Ko’pal O. Saparboev ◽  
Mavluda M. Allaberganova

In our studies phenological phases of cabbage aphids Brevicoryne brassicae (L.) were studied. The influence of external factors (humidity and temperature) was studied under laboratory conditions. The maximum reproductive ability of cabbage aphids was noted in spring and autumn. Some of the parthenogenetic aphids gave about 82 larvae. The daily reproductive ability of aphids was 3-5, and the maximum 5-11. When studying the reproductive ability of parthenogenetic aphids, this indicator was slightly lower than that of the wingless aphids (average 28, maximum 51). The overall development of cabbage aphid seeds averaged 7–9 days in summer and 12–21 days in early spring and autumn. The importance and bioecological features of Metamorphus corollae (F.), Episyrphus balteatus (De Geer, 1776), Syrphus vitripennis (Meigen, 1822), Scaeva pyrastri (L.) Coccinella septempunctata (L.) and Adonia variegata (G.), Chrysopa carnea Steph. with natural control of the cabbage aphid were studied. Studying the biological effectiveness of a simple golden-eyed fly in relation to the cabbage bug, efficiencies were observed at a ratio of II-year-old larvae of simple golden-eyed and cabbage bug in a ratio of 1:5 and 1:10. For 4 day old gold-eyed eggs, this efficiency was observed when the ratio with cabbage bug was 1:1 on the 17th day of the experiment.


2013 ◽  
pp. 407-411
Author(s):  
C. Mazilu ◽  
I. Dutu ◽  
GH. Mladin ◽  
S. Ancu ◽  
M. Coman ◽  
...  

1963 ◽  
Vol 53 (4) ◽  
pp. 737-745 ◽  
Author(s):  
Ali A. Hussain

The dubas bug, Ommatissus binotatus lybicus de Berg, is a serious pest of the date palm (Phoenix dactylifera) in Iraq, where there are two generations a year. Both nymphs and adults, which are described, suck the sap from the date palm. Repeated heavy infestations cause the weakening and death of some of the palms.The eggs are laid on all the green parts of the palm except the fruits, the majority on the leaflets, especially the upper surface. They are distributed evenly on the four aspects of the date palms, but unevenly on the frond rows, the second and fourth oldest rows having the majority of the eggs in the overwintering and summer generations, respectively. Deposition of eggs of the overwintering generation began in the second week of November and hatching started during the first week of April, the nymphal period lasting 47 days and the adults surviving for 15 days. Eggs of the summer generation were deposited from the second week of June, and hatching started in the first week of August, the nymphal period lasting 50 days and the adults surviving for 13 days. There are five nymphal instars.The nymphs excreted droplets of honeydew, and both nymphs and adults prefer the shady parts of the date palm. In order to escape the severe heat of the summer days, the nymphs and adults of the overwintering generation migrated towards the bases of the new fronds. The sex ratio was nearly 1:1, and the mean number of eggs laid per female was 106. The mortality rate for a constant population level was 98·11 per cent.The eggs were parasitised by a small Chalcidoid. The larvae of the lace wing Chrysopa carnea Steph. and the adults of Coccinella septempunctata L., C. undecimpunctata L., and Chilocorus bipustulatus (L.) preyed upon the nymphs and adults.In tests with inseeticidal sprays containing 240 g. active ingredient per 100 gal. applied at the rate of 1½ gal. per palm against adults and nymphs, DDT and malathion were equally effective, but Dipterex was less so. Similar concentrations of mixtures of malathion with heptachlor and DDT with diazinon were also effective.


Author(s):  
I.V. Grynyk ◽  
◽  
P.V. Volvach ◽  
B.Ya. Panasiuk ◽  
◽  
...  

The paper is dedicated to the 90th anniversary of the foundation of the Institute of Horticulture of the National Academy of Agrarian Sciences of Ukraine. The main stages of the development of the horticultural science in the former USSR, in-cluding Ukraine are presented as well as the role of Volodymyr Symyrenko in this process. His father, the famous pomologist L.P. Symyrenko as early as at the beginning of the industrial horticulture formation stressed that just the scientific support of this branch is the main guarantee of its success. He stated that a profitable industrial orchard, despite the huge investments, can’t be successful without well-studied fruit crops cultivars adapted to the certain area. Only specialized research institutions could manage this task. The first in Russian Empire pomological collection and pomological nursery were created by L.P.Symyrenko in 1887 in the family estate ‘Platoniv farmstead’ near Horodyshche (now Cherkasy region). Thus the countdown of the Ukrainian horticultural science and industrial fruit growing should be conducted from this time. The scientist was the author of a number of outstanding scientific works, in particular "Crimean industrial horticulture" (1912), and the paper ‘Pomology’ is even now hand book for millions of scientists and manufacturers of horticultural products not only in Ukraine but also far beyond its borders. Professor Volodymyr Lvovych Symyrenko became a worthy successor of hisoutstanding father's cause. At the beginning of 1921, with the consent of the People's Commissariat of Agriculture of Ukraine, he organized the Mliiv Station of Fruit and Vegetable Growing on the material, technical and scientific basis of his father's pomological nursery, which under V.Symyrenko leadership soon became a leading scientific establishment. Thanks to it in Melitopol at first a strong point emerged on the basis of which a full-value research station was established in the late 1920s. Research stations were created in other regions not without the participation of Mliiv scientists and personally professor V. Symyrenko too. The scientific program of the Crimean Research Station was also compiled by Volodymyr Symyrenko. It should be noted that the process of establishing research institutions, especially branch institutes, in the country was intensified after the organization of the All-Union Academy of Agricultural Sciences in 1929 and the appointment as its president of the world-famous scientist M. Vavilov. V. Symyrenko's principled position concerning the location of the future All-Union Research Institute of Horticulture and Small Fruit Growing and Program of reforming the horticultural science proposed by him found support in the Academy of Agricultural sciences and among many authoritative scientists and manufacturers. His scientific paper on the reform of the horticultural science, published in April-May 1930 in the leading journal ‘Visnyk sadivnytstva, vynogradarstva ta gorodnytstva’ received great publicity. As early as on July 14 of the same year the resolution was passed on the establishment of the All-Union Research Institute of Fruit and Small Fruit Farming in Kyiv and appoint of V. Symyrenko its Acting Director was adopted at the meeting of the Presidium of the All-Union Academy of Agricultural Sciences. The creation of a powerful research Institute of Horticulture and the transformation of Ukraine into the horticultural capital of the country was a cherished dream of Professor V. Symyrenko. And even during the destined rather short three-year period of his leadership in the Institute, he managed to do quite a lot. Though he was repressed, the horticultural science and horticulture as a whole developed not only in Ukraine but also in other republics, according to Symyrenko’s program. A network of zonal research stations were formed in a fairly short period. The institute postgraduate courses created by V. Symyrenko managed to prepare many the young scientists. Currently, the Institute of Horticulture of NAAS of Ukraine, as the main fruit growing scientific institution, the puts into effect coordination and scientific and methodological guidance of the basic and applied researches in horticulture and ornamental plant growing in Ukraine. The scientists of seven research stations work together with the institute on ful-filling the scientific tasks, and the production testing of the developments is carried out in 13 farms experimental.


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