UA21982U - Method for controlling the amount of pests of forest plantations - Google Patents

Abstract

A method for controlling the amount of pests of forest plantations includes using preventive and exterminative measures. The low-repeatedly amount of a complex of insect pests is maintained by means of the consecutive use of a specialized species of the egg parasite Trichogramma telengai Sorok. in the egg-laying period. More than two releases of the Trichogramma are carried out on the basis 1.0; 1.2 and 1.0 thousand females per one tree. In 5 days after the third release of the Trichogramma single spraying of trees is carried out with the insecticide preparation juvenoid Insegar 25WP. The plant remains and soil surface are treated with an aqueous solution of the insecticide Aktara 25 WG.

Description

Description of the invention

The useful model refers to forestry, in particular to the field of protection of forest stands and forest plantations from harmful insects and can be used in the technologies of protection of forests, forest parks and other perennial plantations.

It is known that the phytosanitary condition of most forests of Ukraine is assessed as unsatisfactory (A.V. Tsilyuryk et al.

Entomopathophytological status of oak forest improvement plantations of the Forest Steppe and Steppe of Ukraine. Forest protection. -

K.: Scientific Bulletin of NAU, 2005. - T.83. - P.11-19). Among the determining reasons for this, in addition to the consequences of total anthropogenic impact on the environment, forest pollution, a significant role in this process is played by the negative activity of numerous species of harmful insects. The latter damage all parts of trees and their organs. In recent years, due to radical changes in all spheres of state and economic activity in Ukraine, the problem of the phytosanitary state of forests has become particularly acute | V.L. Meshkova Forest protection is an important component of forestry. Forest protection. - K.: Scientific Bulletin of NAU, 2005. - 7.83. - P.19-24). 19 A known method of using the fungal entomopathogenic drugs pecilomin and boverin against diapausing caterpillars of fruit-eaters that damage forest plantations - acorn fruit-eater and garden plants - apple, pear, plum |N.V. Lappa, V.M. Goral, V.F. Thrush Means of struggle! with diapausing caterpillars of fruit flies. A.S. USSR Mo1067633, MKI AO1M63/00. Announced on 12/23/1981, without publication. In the method of the place of diapausing of caterpillars of fruit eaters - tree trunks, skeletal branches, the soil of tree trunk circles are treated with Z95 suspensions of these preparations. The final efficiency was 55.8-76,890 dead caterpillars. Due to the lack of drugs, their state registration, the complexity of the technological nature associated with the use of the method, it did not become widespread.

A known method of protecting perennial fruit plantations from pests, which is the closest technical solution to the method claimed and chosen as the closest analogue of IV.F. Thrush Method 29 of protecting fruit plantations from pests. Patent of Ukraine Mo20535A, IPC AO1KB7/00. Publ. 27.02.1998. Bul. sv)

Me1). The method described in the closest analogue consists in the fact that it includes spraying trees during the growing season by using biological preparations - viral and bacterial, the treatment of which alternates with the release of two types of entomophages into the garden - Trichogramma and Ascogaster. For entomophages, optimal conditions for their activity are created by planting woody and grassy vegetation around the garden. with

However, the closest analogue method has the following disadvantages: the viral preparation Virin GJAP is used against the apple fruit borer, which is effective only against one type of pest. Therefore, it is necessary to use other drugs against others. Unreasonable effectiveness of the method against the group of antoptera and orthoptera pests, especially those that cause damage to forest plantations. "--

The basis of a useful model is the task of creating a method of controlling the number of pests of forest plantations, through the targeted use of natural populations of Trichogramma, a parasite of lepidopteran eggs, in periods optimal for the action of Trichogramma - the beginning, mass oviposition and cessation of egg laying, with the sequential use of the insecticide preparation Juvenoid Insegaru 25 MUR, z.p. (wettable powder), 0.bkg/ha. In addition, in order to control the population of the group of antopterous pests, it is envisaged to "use an aqueous solution of the insecticide Aktara 25 of the Ministry of Internal Affairs, v.g. (water-soluble granules) in a concentration of 0.25905, - by directed application of this solution to the surface of plant remains, leaf litter and the surface of the soil in the projection of tree crowns.

From" The task is solved by the fact that in the method of controlling the number of pests of forest plantations, which includes the use of preventive and exterminating measures, according to a useful model, a stably low number of a complex of harmful insects is supported by the consistent use during the egg-laying period of a specialized species of egg parasite Tgispodgatta (eiepdaii ZogokK. and carry out more than two releases of trichograms at the rate of 1.0, 1.2 and 1.00 thousand females per tree, and 5 days after the third release - trichograms carry out a one-time spraying of the trees with the insecticidal preparation Juvenoid Insegar 25MUR, z.p., 0.bkg/ha, and plant residues and the surface of the soil are treated with an aqueous solution of the insecticide Aktara 250, i-o vg, 0.2596. o 20 The essence of the proposed method is that it controls the number of the entire spectrum of dominant pests of the Forest Steppes by combining the use of biological, hormonal and safe chemical insecticides in the method In order to control the number of pests of forest plantations, the following elements are consistently used: from all nine species of the genus Tgispodgatta, a parasite of the eggs of many pests, it is proposed to use only one, as established experimentally, Tgispodgatta (Eiepdaii ZogoK., the most adapted to forest coenoses. In optimal terms, for the pronounced effect of trichogram, it is used in 2-3 doses: at the beginning of egg-laying of lepidopterous pests; during the period of mass egg-laying; at the end of oviposition.

Trichogram, previously grown in a biolaboratory, is distributed in the crown of trees during the period, before the beginning of flowering and in the following phases of plant development, at the rate of 1.0; 1.2 and 1.O0ths. females per tree. The crowns of trees are continuously treated with the juvenoid Insegar 25MUR, z.p., O.bkg/ha, after which Aktara 25MUS, v.g. in a concentration of 0.2595, which reduces the number of a complex of antoptera and orthoptera species, thrips and other pests. The combination of all the elements of the method: the use of trichogram, the juvenile drug Insegar 25MUR and the insecticide Aktara z.p. allows you to reliably control and maintain the number of the complex of dominant pests of forest stands at a stably low level. because Example of implementation of the method

Woodlands of the Kamianets-Podilsky forest farm of Khmelnytskyi region, mixed deciduous forest. Among the complex of harmful insect species, there is a group of fruit-damaging species: carpophagous leafhoppers, acorn fruit eaters, phyllophages and xylophages, moths and leafhoppers. Collectively, those species whose caterpillars damage all terrestrial parts

Vosliny Among the arthropods, there are especially dangerous species, the adults and larvae of which damage young plants in nurseries, damage the seeds, the root system - the common brassica, and the leaves and young shoots - the head tailor. Collection from forest stands and species identification of a specialized species of trichogram T. iIsiepoai ZohokK. Breeding trichogram using existing methods in the eggs of the laboratory host - the grain moth

Zyoigoda segeaYeMya Oiim. Monitoring the species composition of forest pests and establishing optimal terms 7/0 Use of a trichogram. Release of trichogram on trees in three stages: at the beginning, during the period of mass egg-laying and at the end of it, at the rate of 1.0; 1.2 and 1.0 thousand females per tree. One-time spraying of trees 5 days after the third release of the trichogram with the insecticidal preparation Juvenoid Insegar 25MUR, z.p.,

Oh, bkg/ha. Treatment with an aqueous solution of the insecticide Aktara 25MUUs, v.g., 0.2595, leaf litter, other plant residues.

In addition, the component elements of the method were tested, removing one of the elements from the method, as shown in the table. To assess the value of the positive result, the control of the number of forest pests was also carried out using the method of the closest analogue. The final result of using the method was determined by indicators of biological efficiency in relation to individual pests or groups, and the final efficiency was compared with the closest analogue. During the research period, a fairly significant number of dominant pests was observed, which made it possible to conduct an objective assessment of the effectiveness of the method.

Control of the number of pests of forest plantations (Khmelnytskyi region, Kamianets-Podilskyi forest farm 2004-2006 year)

Methods and their components Lepidoptera pests: biological | Pteroptera Pteroptera, Summary elements that are compared | efficiency, 90 biological pests, biological (biological -o efficiency, 95 | efficiency, 95 efficiency, 95

Pests Leafworms - Moths

Issue of trichogram T. 88.7 92.8 94.6 75.6 71.3 84.7 iiepdai in three receptions; (oo)

Spraying trees,

Insegar, O, bkg/ha; (is)

Processing of stock circles

Aktara, 0.75 (method that is offered)

З Release of a trichogram in three 80.5 844 90.2 384 422 67.1 s receptions;

Spraying trees,

Insegar, O, bkg/ha (element of the method) "

Issue of trichogram in three 714 61.4 701 69.8 55.3 receptions; - c Processing of stock circles

Aktara, 0.7595 (element . and" of the method)

Spraying trees, 79.4 812 824 68.4 602 74.3

Insegar, O, bkg/ha;

Processing of stock rings by Aktar, 0.7595 (element of the method) - the cheapest even | 11711111 11171111 2

Те) кова и и и и (о) The results of the assessment of justification of the method are presented in the table. It was established that according to the assessment received

Short of indicators, the general phytosanitary state of forest stands, the proposed method provided protection of the forest from a complex of harmful insects. It was significantly more effective than the closest analogue. In addition to biological effectiveness, a biocenotic effect was also observed, which consisted in the fact that in the areas of the forest where the proposed method was used, a high level of the number of predatory and parasitic insects, a component of the general natural regulatory process, was observed. In combination with the effect of the method, long-term control of the number of forest pests was observed. Thus, a fairly effective way of long-term control of the number of forest pests is proposed.

Claims (1)

60 Formula of the invention The method of controlling the number of pests of forest plantations, which includes the use of preventive and exterminating measures, which is distinguished by the fact that the stably low number of the complex of harmful insects DB is maintained by the consistent use during the egg-laying period of a specialized species of egg parasite Tgispodgatta (eiepdaii ZogoK., while carrying out more than two releases trichograms based on 1.0, 1.2 and 1.0 thousand females per tree, and 5 days after the third release of the trichogram, the trees are sprayed once with the insecticide preparation Insegar 25MUR, z.p., 0.6 kg/ha, and the plant remains and the surface of the soil are treated with an aqueous solution of the insecticide Aktara 25 M/S, v.g., 0.25 95. Official bulletin "Industrial Property". Book 1 "Inventions, useful models, topographies of integrated microcircuits", 2007, M 4, 15.04.2007. State Department of Intellectual Property of the Ministry of Education and Science of Ukraine. - с с (22) "- с - with . and? ime) - se) o 50 Ko) s 60 b5