Volume 23, No. 2 (2014)
Articles
REDUCING THE DENSITY OF DEFOLIATOR PESTESTS WITH THE HELP OF TRICHOGRAMMA IN THE PARKS FROM REPUBLIC OF MOLDOVA AND ROMANIA
GAVRILIŢA LIDIA(1), NEŢOIU COSTANTIN(2), CORNEANU MIHAELA(3)
During the year 2013 under the bilateral project of the Institute of Genetics, Physiology and the Plant Protection Institute of ASM, together with scientists from Romania from Forest Research and Management Institute, Craiova Research Station and partners from University of Agricultural Sciences and Veterinary Medicine from Timisoara (Romania) were conducted a series of studies. There were monitored and mass captured Lepidoptera insect species (Tortrix viridana L., Helicoverpa armigera Hb., Grapholitha molesta Br., Grapholitha funebrana Tr., Laspeyresia pomonella L.,Cameraria ohridella Deschka & Dimic, Lymantria dispar L.) using pheromone traps in Botanical Garden and public parks of Republic Moldova and Romania. Monitoring and mass capturing of the males of main pest species using pheromone traps allow us to apply other biological methods of plant protection.. The biological efficacy of T. embryophagum Htg. and T. evanescens Westw, varied in different plant species (oak, mulberry, chestnut, plum, apple, flowers) from 64.5 to 73.3% in Moldova and from 36.3 to 75, 0 % of Romania.
METHODOLOGICAL AND TECHNOLOGICAL METHODS FOR APPLICATION OF SEXUAL PHEROMONES AGAINST GRAPHOLITHA FUNRBRANA Tr.
NASTAS TUDOR, RAILEANU NATALYA, CHEPTINARI VALERIA, ROSCA GHEORGHI
With the development of a new scheme for the synthesis of sexual pheromone of Grapholitha funebrana pest, developing a new pheromone composition - “[Z8-12Ac97%+E8-12Ac 3%] (10%) + H-12Ac (90%)” and a new dispensator was possible to develop methodological and technological processes for applying their methods of capture mass and disorientation of males. It was shown that application of appropriate methods allow to substantially reducing the population density of the given pest, the significant reduction of the damage caused and obtainment of the new production of green plums.
CONTRIBUTIONS TO A REVISED SPECIES CONSPECT OF THE EPHEMEROPTERA FAUNA FROM ROMANIA (mayfliesyst)
FLORIAN S. PRISECARU(1), IONEL TABACARU(2), MARIA PRISECARU(3), IONUŢ STOICA(3), MARIA CĂLIN(4)
Our research, conducted between 2003-2011 on the Order Ephemeroptera from Romania discovered some inconsistencies in the systematic classification of this order. As a result, considering the current data in Ephemeroptera systemetics and the numerous reviews and synonimies that have been established, we porpose a new species conspect on this insect order of our country.
THE BEHAVIOR OF SOME PLANT SPECIES TO SNAILS ATTACK
CĂLIN MARIA(1), CRISTEA TINA OANA(1), AMBARUS SILVICA(1), BREZEANU CREOLA(1), BREZEANU PETRE MARIAN(1), PRISECARU MARIA(2), ŞOVA GEORGE FLORIN(1)
Two snail species were identified: Helix pomatia L. and Cepaea hortensis Müll. The report between species H. pomatia and C. hortensis was 10:0,2. The attack comes after planting in May and continues until the end of culture. Climatic conditions were very favorable for pests with a lot of rains and humidity. So that the attack of H. pomatia was very high in Dahlia variabilis - 19,5 %, Lilium candidum - 37,4 %, Phaseolus vulgaris - 81,1 %, Lactuca sativa - 28,9 %. Other species of plants were also attacked: Phlox drummondii 1,2%, Hosta plantaginea 6,3%, Pisum sativum 0,9%. The high attack at previous mentioned species determined the search and removal of snails from crops. The number of Cepaea hortensis attacked species was very small. Two species has snail attack: Chrysanthemum coronarium 1,5 % and Phlox drummondii 0,3 %. This snail specie do not have economic importance.
VARIABILITY STUDY OF BIOCHEMICAL INDICATORS WITH DIAGNOSTIC VALUE IN MEN WITH HYPERTENSION
PRISECARU MARIA, STOICA IONUŢ
Were investigated 30 men with a diagnosis of hypertension. In these subjects we studied the biochemical response of the heart, pursuing diagnostic value of biochemical indicators: triglycerides, cholesterol, HDL, LDL, creatinine, troponin T, lactad dehydrogenase, aminotransferases (SGOT, SGPT), and creatine which causes changes the circulatory system and blood pressure increase. Investigated subjects were grouped by sex and three age categories: 36-50 years, 51-65 years and above 65 years. Age group most affected, in our case the range was 36-50 years, where significant changes occur specific indicators for cardiovascular disease: LDL-cholesterol, triglycerides, troponin T, LDH and SGOT.
HISTOLOGICAL ASPECTS OF ANY HUMAN TUMORS IN SEQUENCE BENIGN / MALIGNANT
PRISECARU MARIA, STOICA IONUŢ
In this paper we have proposed evaluation of histological preparations made from malignant and benign tumors in the affected organs and neoplastic adenomatous lesions correlate morphology with particular aspects of their environment inflammatory process generated during the course of adenomacarcinoma sequence.
OBSERVATIONS ON THE LIFE CYCLE AND REPRODUCTIVE BEHAVIORIN RANA DALMATINA F.
IOSOB ALIN GABRIEL, PRISECARU MARIA
This paper presents a study of embryonic development, larval and post-larval (metamorphosis) of the frogs of the species Rana dalmatina F. (agile frog) under laboratory conditions. This species has a shrinking population and is declared strictly protected species. Egg collection was made in one of the breeding ponds Gadinti the commune, Neamt County, March 2014. Study, conducted with low material brings valuable data about the conditions of their embryonic, larval and post-larval and possibility of increasing laboratory frogs important aspects for understanding and conserving this species of amphibians.
STUDY ON THE STATUS OF FISH COMMUNITIES ON TRIBUTARIES SITUATED IN THE MOUNTAIN AREA OF BISTRITA RIVER UPSTREAM RESERVOIRS
STOICA IONUŢ, BATTES KLAUS WERNER, PRISECARU MARIA
This paper tries to highlight the extent to which were affected fish communities on the Bistrita River tributaries in the upper basin. For this purpose samples were taken from 10 collection points both on tributaries of right and left of the Bistrita River. Sampling was done in the spring and summer when fish species are active foraging and reproduction. In each collection point were recorded a number of physico-chemical water parameters (temperature, conductivity, pH, amount of O2 dissolved in water), habitat status data (collected surface, water depth, speed, altitude and GPS coordinates) and raw data on fish samples (number of specimens per species and biomass). Through data processing and calculation of indices ecological, biodiversity index could highlight the current status of fish fauna, which was comparable to that existing before the human impact after 1960. By determining the IBI was revealed that the fish communities of the Bistrita river tributaries, upstream from Lake Bicaz, were the least affected, except tributary Neagra Şarului.
A REVIEW OF THE MOST IMPORTANT PEST INSECTS AND ITS INFLUENCE ON TOMATO CULTURE
BREZEANU PETRE MARIAN, BREZEANU CREOLA, AMBARUS SILVICA, CALIN MARIA, CRISTEA TINA OANA
Tomato is one of the most important vegetable crops cultivated all over the world. Because of its value growers often apply pesticides too often in order to protect their investment. This often leads to development of insect resistance, environmental contamination, worker and food safety issues and poor management of pests. The key to any successful pest management program is to develop a regular scouting plan to gain information on insect pest populations that may be used to determine if insecticide applications are needed. Monitoring can consist of sampling groups of 10 plants which are randomly selected at 5-8 different locations in a field. Samples should be distributed throughout the field so that plants near the edges and middle of the field are examined. In recent years there has been a great increase in new control technologies available to growers, this makes management of insect pests in tomatoes an ongoing process. The new insecticides generally act against a narrower range of pest species than the older, broad-spectrum materials. Therefore, it is critical to properly identify the pest to be controlled and to determine its potential for damage. The only way to obtain this information is through routine scouting. The purpose of this work is to serve as a reference for insect pest identification.
INFLUENCE OCCURRENCE LAKES BICAZ AND POIANA TEIULUI ON FISH COMMUNITIES IN THE BISTRITA RIVER
STOICA IONUŢ, BATTES KLAUS WERNER, PRISECARU MARIA
To highlight the changes in the structure of fish communities through the advent of Bicaz lakes and Poiana Teiului samples were taken both from the two lakes, using trammel and the upstream river areas (Bistrita - Galu) and downstream (Bistrita - City Bicaz) them. The two lakes were identified higher valences species to environmental conditions and food (perch, bleak, chub) except nase identified Bicaz lake, which with the advent dam at Poiana Teiului, probably will not be able to migrate on the river, leading to the reduction and disappearance of the numbers of the lake. By sampling upstream and downstream, by calculating some ecological indices in the two collection points is apparent influence they have two lakes on the fish fauna of the river. Fish community structure is slightly modified in the upstream of the two lakes. Downstream river course due to strong fragmentation and water pollution, fish community structure is changed by the dominance resistant species with broad valences. This is less evident in the calculated IBI as there are a number of species typical of the river, they got off the Bistrita river right tributary of Bicaz.
PRELYMINARY STUDY REGARDING THE PEST INSECTS MANAGEMENT AT VIGNA GENUS
BREZEANU CREOLA(1), BREZEANU PETRE MARIAN(1), ROBU TEODOR(2), AMBARUS SILVICA(1), CALIN MARIA(1), CRISTEA TINA OANA(1)
Insects can significantly affect the overall profitability of a mungbean crop, reducing both yield and seed quality. Accordingly, insect damage is one of the main reasons for downgrading Vigna crops. The investigated items presented in this paper are following: main insects helicoverpa (Helicoverpa punctigera), mirds (green mirid - Creontiades dilutus and brown mird - Creontiades pacificus), green vegetable bug (GVB) (Nezara viridula), redbanded shield bug (RBSB) (Piezodorus oceanicus), large brown bean bug (Riptortus serripes), small brown bean bug (Melanacanthus scutellaris), bean podborer (Maruca vitrata) (previously Maruca testulalis), thrips, silverleaf whitefly (SLW); monitoring of insect attack; risk period and damage; thresholds of attack; control of pathogens. For a proper management of insect attack, crops should be inspected regularly (weekly) from the vegetative stage through to budding, and twice weekly from the start of budding-flowering through to the completion of pod fill. Crops which are producing buds, but not flowers, may contain damaging levels of sucking insects, causing the buds to abort before the flowers open. Mungbeans can compensate for early damage by setting new buds and pods but this may result in uneven maturity. Excessive early damage can delay harvest.
ASSESSMENT ON FISH COMMUNITIES’ STATE BY SEVERAL BIODIVERSITY INDICES IN THE RIVER CASIN (ROMANIA) IN 1998-2008
NADEJDE MARIUS(1), BRAN PETRONELA(2), URECHE DOREL(2), URECHE CAMELIA(2), LAZAR IULIANA(1)
This study aims to estimate the state of fish communities in the basin of River Casin in 1998-2008 based on some indices of biodiversity (Alpha, Berger-Parker, Simpson). There were established some physic-chemical factors of the water and there were made some correlations between biodiversity indicators and some abiotic factors. It was observed that the value of biodiversity indices varies in time and depends on the sampling sites, suggesting a clear influence of the anthropic factors on the biodiversity within fish communities.