Constantina Chireceanu

• PhD
• Research and Development Institute for Plant Protection Bucharest, Romania

This report presents new information on presence of the Mediterranean spiny stink bug Mustha spinosula (Heteroptera: Pentatomidae) in the south of Romania, and new host plants for this species.

Sunflower (Helianthus annuus L.) is the third largest agricultural crop in Romania, after corn and wheat. In 2021 Romania cultivated 1112 thousand ha of sunflower with a production of 2818 thousand tons, ranking first among EU countries both in terms of production and cultivated area. Diatomite, also called diatomaceous earth or kieselguhr, is a na...

Following its first report in Romania in August 2022, more data regarding the walnut shield bearer Coptodisca lucifluella was collected. The leafminer moth is an invasive species of North American origin that entered Europe in 2010 (in Italy), and then spread to Hungary, Ukraine, Bulgaria and Romania. It is not an economically important pest alone...

Material și Metode: S-au făcut observații directe în 2020 și 2023 asupra frunzelor copacilor din specia A. platanoides aflați în curtea unor instituții publice și aliniamente în Băneasa, zonă de nord a orașului București. S-au prelevat probe de frunze cu colonii de afid care s-au analizat în laborator. Prezența afidului Periphyllus lyropictus pe A...

The suborder Auchenorrhyncha is a diverse group of sap-feeding insect species, many of them of economic importance. The paper presents comparative results on the ecological characteristics of species communities of Auchenorrhyncha sampled in one apple orchard and one plum orchard that belong to the experimental field Moara Domnească Didactic Statio...

The crown gall of grapevines is an economic importance bacteriosis caused by Rhizobium vitis strains. Five essential oils (EO's) were tested against the autochthonous 2btm strain of R. vitis for their capacity to inhibit the phytopathogen growth, by in vitro and in planta tests. The measurements regarding in vitro inhibition zone were performed. Su...

Ceratitis capitata (Wiedemann), the Mediterranean fruit fly or medfly, is one of the world's most serious threats to fresh fruits. It is highly polyphagous (recorded from over 300 hosts) and capable of adapting to a wide range of climates. This pest has spread to the EPPO region and is mainly present in the southern part, damaging Citrus and Prunus...

The need for efficient technologies to enhance productivity in agriculture strongly motivates research on plasma treatment of seeds and plants. In this study, the influence of plasma treatment on sunflower (Helianthus annuus L.) seeds was evidenced throughout the entire life span of the plants. The seeds were packed in a DBD reactor operated in air...

The paper reports the rediscovery of the aphid Periphyllus lyropictus on the Norway maple Acer platanoides in northern part of Bucharest (Băneasa area) in southern Romania, after more than 50 years from the first record of the species in this zone. Aphid colonies varying in size, consisting of apterous forms in various instars, and mixed colonies o...

The article presents a mathematical model for experiments evaluating the effectiveness of diatomaceous earth treatments against the bean weevil, Acanthoscelides obtectus. The proposed mathematical model is of the differential type, inspired by the category of prey-predator models. The system of equations is nonlinear and is solved numerically. A sy...

Abstract: The invasive species Coptodisca lucifluella, also called the walnut shield bearer is recorded for the first time in Romania in this report. It is a leaf miner of North American origin, having been discovered for the first time in Europe (Italy) in 2010. Since then it has been confirmed in other three European countries, Hungary (2017), Uk...

The Auchenorrhyncha is one of the most abundant and species-rich insect groups present on grapevine. In our study there are presented the results on abundance, dominance, constancy and ecological significance as well as species diversity of Auchenorrhyncha group monitored in 2016-2018 and 2020-2021 in a network of ninety-five vine plots distributed...

" The invasive species Coptodisca lucifluella, also called the walnut shield bearer is recorded for the first time in Romania in this report. It is a leaf miner of North American origin, having been discovered for the first time in Europe (Italy) in 2010. Since then it has been confirmed in other three European countries, Hungary (2017), Ukraine (2...

Monitoring of Drosophila suzukii in Romania in 2014-2021 period.

In the present study there are presented the results obtained in laboratory tests to evaluate the efficacy of the Romanian diatomaceous earth from Pătârlagele deposit in Buzău County (DE PatRom) against adults of three population of the bean weevil Acanthoscelides obtectus L. (one maintained in laboratory conditions at the Plant Protection Institut...

Three sunflower hybrids: F708 (H1), HF 7104 (H2) and FD18E41 (H3) were sown at three different sowing dates (SD): 10 March (SD1), 25 March (SD2) and 10 April (SD3) in order to determine the influence of sowing date on the morphological characters and yield components. Research was performed in the field experiments in Tulcea county in 2020 under ra...

The global phenomenon of biological invasion is a prevailing and important subject of research, with major negative social and economic consequences, representing a real threat for the native biodiversity of invaded countries. The main elements that favour the entering and spreading of invasive insect pest species into new territories are the inten...

In the present study there are presented the results obtained in laboratory tests to evaluate the efficacy of the Romanian diatomaceous earth from Pătârlagele deposit in Buzău County (DE PatRom) against adults of three population of the bean weevil Acanthoscelides obtectus L. (one maintained in laboratory conditions at the Plant Protection Institut...

The species of the Auchenorrhyncha group represent one of the most important risks for apple and plum orchards, some of them being the vectors of major pathogens such as phytoplasmas. This paper presents results on the presence and structure of species of the Auchenorrhyncha suborder recorded in two unmanaged orchards of apple and plum from the nor...

The article presents the results of research on possible mathematical models of the effectiveness of pest control processes for agricultural products stored in silos. The authors continue the research in a previous article, which presents the experimental data underlying the construction of functions that measure the efficacy of the process of comb...

Ploșnița dantelată a stejarului Corythucha arcuata Say 1832 (Heteroptera: Tingidae) este o specie invazivă de origine Nord Americană, detectată în Europa în primăvara anului 2000, în Nordul Italiei pe stejarul pedunculat. În România, C. arcuata a fost observată în 2015 în partea de vest a țării, iar în 2016 au fost constatate primele daune ale inse...

Book of abstracts 2 TEAM 2020 Welcome W e l c o m e Dear colleagues, The TeAm meeting is approaching. As you know, due to the special circumstances, we decided to change the format and make it a combined physical and virtual meeting. Thus far, around 200 participants have registered for the webinar and about 20 people will be physically present in...

Book of abstracts 2 TEAM 2020 Welcome W e l c o m e Dear colleagues, The TeAm meeting is approaching. As you know, due to the special circumstances, we decided to change the format and make it a combined physical and virtual meeting. Thus far, around 200 participants have registered for the webinar and about 20 people will be physically present in...

" This paper presents the species composition and abundance of epigeal invertebrate fauna collected from experimental pepper crops at the Vegetable Research and Development Station Buzău, Romania during 219-2020. The open field bell pepper Buzau 10 (2019) and Cantemir (2020) varieties were used in the experiment in five variants with two factors, d...

The paper presents the results of a three-year survey (2016-2019) on the presence and distribution of invasive insects on grapevines in Romania. Five pest species were detected on the grapevines at 11 localities in different regions in the country, as follows: the North American leafhopper of grapevine Erasmoneura vulnerata, the Japanese leafhopper...

Orientus ishidae (Matsumura, 1902) and Acanalonia conica (Say, 1830) are two of the latest invasive non-native insect species we detected in the northern Bucharest in 2016, representing the first record for Romania. Ornamental plants brought in the city were most probably the penetration pathway.The data in 2017 and 2018 were compared with those fr...

The North American leafhopper Scaphoideus titanus Ball 1932 is the main vector of Flavescence dorée phytoplasma affecting many grape growing areas in Europe. The paper presents the results of three-year survey (2016-2018) regarding the distribution and population density of S. titanus in vineyards showing symptoms characteristic to yellows diseases...

Neodryinus typhlocybae (Ashmead 1893) (Hymenoptera, Dryinidae) is an important North American parasitoid wasp of the citrus flatid planthopper Metcalfa pruinosa (Say 1830), an invasive alien pest species accidentally introduced from North America to Europe in 1979. This has spread rapidly with large populations in many European countries, including...

Grapevine yellows is a group of infectious diseases which are usually associated with phytoplasma pathogens, affecting yield and survival of grapevine. The objective of this work was to studying sugars, acids and total phenols of different wine grape cultivars affected by specific symptoms to phytoplasmoses. Berry samples of four cultivars, collect...

Prima semnalare a parazitoidului Neodryinus typhlocybae în România

Detection of phytoplasma-associated symptoms and identification of Auchenorrhyncha group leaf- and planthoppers associated with yellows type diseases in vineyards of five important Romanian grapevine growing regions during 2009–2012 are presented. Typical grapevine yellows symptoms were observed in 17 out of 40 (45%) surveyed grapevine plots and va...

A new invasive species, the Japanese grape leafhopper, Arboridia kakogawana (Matsumura). is reported for the first time in Romania. Arboridia kakogawana is a serious pest of grapevine ( Vitis vinifera L.) in East Asia (South Korea and China) and in Southern Russia (Krasnodar and Rostov regions) and Ukraine. In 2018, very high numbers of A . kakogaw...

In this study, we investigated the effect of atmospheric plasma jet treatments on adults of the red flour beetle, Tribolium castaneum (Herbst) and the confused flour beetle, Tribolium confusum Jacquelin du Val in wheat grains. We evaluated the mortality of insects upon temperature and after plasma exposure by changing the gas (Argon, Argon/Oxygen a...

Prezenta moliei mugurilor Theresimima ampellophaga în zone viticole din Romania în 2018.

The North American oak lace bugCorythucha arcuata (Hemiptera: Tingidae) is considered a serious pest on Quercusspp. Since its first arrival in northern Italy in 2000, C. arcuata has been still spreading in Europe and Asia. In 2015, the species was newly recorded for western Romania. Here, we report the first record of C. arcuatafor the southern...

The North American grapevine leafhopper Scaphoideus titanus Ball 1932 (Hemiptera: Cicadellidae) is a major pest of grapevine in Europe, being the main vector of the phytoplasma pathogens associated with the Flavescence dorée disease. In 2016, a field survey was conducted to evaluate the presence of S. titanus in vineyards in the viticulture region...

This work presents the results of the field survey in 2016 referring to invasive insect pests newly recorded from the Southern Romania. Five non-European insect species, belonging to Hemiptera and Lepidoptera Orders damaging diverse plants were identified, as follows: three polyphagous species in Auchenorrhyncha group, Orientus ishidae, Phlogotetti...

The oak lace bug Corythucha arcuata (Tingidae, Heteroptera), an American lace bug of oak species, was detected on Romanian territory in 2016, in the southern part of the country, in urban area of Bucharest city as well as in rural area of Moara Domnească village (Ilfov County) 15 km away from Bucharest. From summer to autumn 2016, numerous eggs, ny...

In the year 2016, two exotic invasive species of Auchenorrhyncha, the Asian leafhopper Orientus ishidae (Matsumura) (Cicadellidae) and the Nearctic planthopper Acanalonia conica (Say) (Acanaloniidae) were recorded for the first time in Romania. A number of 63 adult specimens of O. ishidae and 21 adult specimens of A. conica were trapped from July u...

The oak lace bug Corythucha arcuata (Tingidae, Heteroptera), an American lace bug of oak species, was detected on Romanian territory in 2016 - in the southern part of the country, in urban area of Bucharest city, and in rural area of Moara Domnească village (Ilfov County), 15 km away from Bucharest. From summer to autumn 2016, numerous eggs, nymphs...

Specii invazive de insecte semnalate în zona de sud a României

In September 2014, several plants of celery showing symptoms of reddish and yellowish leaves were found in a house garden located in Southern Romania (Giurgiu County). After sampling and molecular analyses carried out by nested PCR assays on phytoplasma ribosomal gene, amplicons were obtained from all symptomatic plants, but not from those that wer...

Lucrarea prezintă rezultatele obținute prin transmiterea experimentală a fitoplasmei stolburului la plante test sănătoase de Catharanthus roseus, folosind adulți de Hyalesthes obsoletus şi Reptalus quenqecostatus colectați din focarele naturale de boală asociate cu o cultură de cartof din comuna Lungulețu, jud. Dâmbovița, care prezenta simptome de...

Many phytophagous insect and mite species induce galls to plant leaves, either by lying eggs or feeding activity. Some of them attack forest and fruit trees in different environments, and can became serious pests where heavy infestation occurred. The paper presents the results regarding on the presence of galls and gall insects and mites detected i...

ABSTRACT The trapping of Zaprionus tuberculatus Malloch 1932 (Diptera: Drosophilidae) in a site from the Northern part of Bucharest city (Southern Romania) represents a first record for Romania as well as for the Eastern part of Europe. A total of 100 specimens of Z. tuberculatus (57 females and 43 males) have been captured using 0.5 ml bottle trap...

The paper presents the results on the first identification of the Spotted Wing Drosophila, Drosophila suzukii (Matsumura 1931) (Diptera: Drosophilidae) in Romania. In September 2013, seven adults were captured in a Tephri trap (used for the Mediterranean fruit fly Ceratitis capitata) placed on wild blackberry (Rubus caesius L.) bushes in a site fro...

The abundance and population dynamics of Scaphoideus titanus, the natural vector of the quarantine grapevine yellow phytoplasma, Flavescence dorée, (FD) were evaluated with yellow sticky traps on abandoned grapevine of 1.5 ha in the Northern part of Bucharest city (Southern Romania) during 2009-2011. The results revealed that the vector has develop...

Detection of phytoplasma-associated symptoms and identification of Auchenorrhyncha group leaf- and planthoppers associated with yellows type diseases in vineyards of five important Romanian grapevine growing regions during 2009–2012 are presented. Typical grapevine yellows symptoms were observed in 17 out of 40 (45%) surveyed grapevine plots and va...

Abstract Apple proliferation and pear decline diseases associated with ‘CandidatusPhytoplasma mali’ and ‘Ca. P. pyri’, respectively have an increasing importance for fruit growing production in Romania. During 2012, samples from different apple and pear varieties and from insects were collected from four fruit production regions in the southern...

The Mediterranean fruit fly, Ceratitis capitata (Wied.) was studied in Romania in 2013. Using the Tephri traps, a survey of fruit flies was performed in cherry, apricot, peach and jujube orchards but also in private gardens and wild blackberry bushes in 17 locations in the fruit growing regions in the South, SouthEast and West parts of the country....

In 2009, the hawthorn psyllid, Cacopsylla melanoneura (Förster) (Hemiptera: Psyllidae) was investigated in Băneasa area within the framework of a pests monitoring program initiated at the Research Development Institute for Plant Protection Bucharest. This psyllid is an important pest for apple orchards in Europe, as it is a vector of the apple prol...

A study was performed on Grape yellows from 2008-2010, in five commercial grapevine growing regions in Romania. The presence of typical yellowing symptoms resembling Flavescence dorée and Bois noir diseases, described in West Europe, and on other continents, were detected on Vitis vinifera cvs. Chardonnay, Hamburg, Merlot, Feteascǎ regalǎ, Cabernet...

A study on the Auchenorrhyncha insects was performed in 2009 in Romanian commercial vine plots with different varieties and pest control intensities from Murfatlar, Banu Mărăcine and Blaj viticultural regions and in an untreated neglected plot near Bucharest exhibiting symptoms of yellowing or reddening. The aim of this study was to obtain informat...

During August-October of 2011, the presence of Metcalfa pruinosa (Say), a nearctic invasive flatid plant-hopper introduced from North America to Europe in 1979, was detected on fruit trees, grapevines and different ornamental and shrubs plant species in private gardens, public institutions courts in Bucharest city and adjacent areas. Adults were di...

Research on the adaptability of 665 apricot phenotypes from seven geographic areas, preserved in the genetic collections, 9000 hybrids and 35 varieties created in Romania, has shown that, over a period of 27 years (1981-2007), seven years were not favourable to apricot growing. Over the past four years, the short frost periods (-7°C), sometimes las...

The use of the pheromones in plant protection is one of the ecological methods for monitoring pest control in order to maintain their populations in the agro ecosystem below thresholds. The Attract & Kill is a new method that enables us to directly control the pest. It consists of a combination between specific pheromone that attracts the males and...

The aim of the research was to know the current situation of insect community in pear orchard ecosystem (annual treated with insecticides) of Research-Development Institute for Plant Protection, in BaneasaBucharest, by determine the range, structure and abundance of the pest and beneficial insect species. It were sampled a total of 26031 individual...

Using two polyclonal antisera produced in rabbits, one with phytoplasma of apricot chlorotic leaf roll –ACLR (European stone fruit yellows group-ESFY) and another one with aster yellows phytoplasma isolated on axenic culture, an indirect dot blot immunoassay method was performed on nitrocellulose membrane stripes to detect PD, AP 15 and Aster yello...