scholarly journals Selection of insectary plants for the conservation of biological control agents of aphids and thrips in fruit orchards

2021 ◽  
pp. 1-11
Author(s):  
Carmen Denis ◽  
Jordi Riudavets ◽  
Rosa Gabarra ◽  
Paula Molina ◽  
Judit Arnó
Keyword(s):  
Biological Control ◽  
Plant Species ◽  
Natural Enemies ◽  
Fruit Production ◽  
Flowering Plant ◽  
Biological Control Agents ◽  
North East ◽  
The North ◽  
Flowering Plant Species ◽  
Fruit Orchards

Abstract This study evaluated the potential of flowering plant species naturally occurring to promote the conservation and early establishment of key natural enemies of aphids and thrips in apple and peach orchards. Flowering plants present in the North East of Spain, a main fruit production area in Europe, were sampled to determine their flowering period and to identify potential natural enemies present on each plant species. Thirty-six plant species were found blooming from early March to late May and provided an array of flowers that might ensure food resources for natural enemies. Among them, six species – Eruca vesicaria (L.) Cav., Cardaria draba (L.) Desv., Euphorbia serrata (L.) S.G. Gmel., Malva sylvestris L., Anacyclus clavatus (Desf.) Pers. and Diplotaxis erucoides (L.) DC. – hosted a high diversity of potential natural enemies of aphids and thrips. Their blooming started early in the season and lasted for several sampling weeks and they were widely distributed. Moreover, they had available nectar even in those species with protected nectaries. Therefore, these plant species can be considered as promising candidates for inclusion in the ecological infrastructure designed for fruit orchards in the study area to promote the conservation of the biological control agents of aphids and thrips.

Florida’s Established Arthropod Weed Biological Control Agents and Their Targets

EDIS ◽  
2013 ◽  
Vol 2013 (3) ◽  
Author(s):  
James P. Cuda ◽  
J. Howard Frank
Keyword(s):  
Biological Control ◽  
Plant Species ◽  
Natural Enemies ◽  
Crop Production ◽  
Host Plants ◽  
Invasive Weeds ◽  
Biological Control Agents ◽  
Natural Areas ◽  
Weed Biological Control ◽  
Fact Sheet

Around 5% of the plant species deliberately introduced into Florida for crop production and horticultural uses have invaded sensitive aquatic and terrestrial natural areas as well as improved pastures. One of the reasons they become invasive is they lack the natural enemies that limit their reproduction. Biological control reunites these natural enemies (usually arthropods) with their host plants to selectively weaken and suppress the invasive weeds. This 3-page fact sheet was written by J. P. Cuda and J. H. Frank and published by the UF Department of Entomology and Nematology, October 2012. http://edis.ifas.ufl.edu/in779

Yellow Brazilian Pepper-tree Leaf Galler (suggested common name) Calophya latiforceps Burckhardt (Insecta: Hemiptera: Calophyidae: Calophyinae)

EDIS ◽  
2017 ◽  
Vol 2017 (6) ◽  
Author(s):  
James P. Cuda ◽  
Patricia Prade ◽  
Carey R. Minteer-Killian
Keyword(s):  
Biological Control ◽  
North America ◽  
Natural Enemies ◽  
Host Plants ◽  
Classical Biological Control ◽  
Biological Control Agents ◽  
Pepper Tree ◽  
Brazilian Pepper ◽  
Close Relatives ◽  
Tree Leaf

In the late 1970s, Brazilian peppertree, Schinus terebinthifolia Raddi (Sapindales: Anacardiaceae), was targeted for classical biological control in Florida because its invasive properties (see Host Plants) are consistent with escape from natural enemies (Williams 1954), and there are no native Schinus spp. in North America. The lack of native close relatives should minimize the risk of damage to non-target plants from introduced biological control agents (Pemberton 2000). [...]

scholarly journals The inventory of vegetation cover of small river valleys in the north-east of the Samara Region

2021 ◽  
Vol 10 (1) ◽  
pp. 157-162
Author(s):  
Vera Valentinovna Solovieva
Keyword(s):  
Plant Species ◽  
Vegetation Cover ◽  
Higher Plants ◽  
Small River ◽  
Wild Plants ◽  
Small Rivers ◽  
North East ◽  
The North ◽  
The Right ◽  
River Valleys

The study covered 10 small rivers in the North-Eastern part of the Samara Volga region. The author studied the vegetation cover, which is understood as a set of phytocoenoses and their constituent plant species. On the territory of Pokhvistnevsky District, there are two groups of river valleys that are heterogeneous in geobotanical terms. The first group includes the rivers with forested valleys (Kutlugush, Murakla, Karmalka). Their slopes are more or less symmetrical and steep. The vegetation cover of an undeveloped floodplain is usually uniform, and there is usually no belt. The valleys of the second group are treeless; their slopes are sharply asymmetrical (Amanak, Tergala, Talkish). The right-bank tributary of the Maly Kinel River the Lozovka River with its length of 20 km and the left tributary Kuvayka River with its length of 16 km were studied on the territory of Kinel-Cherkassky District. The Padovka and Zaprudka rivers and the right tributaries of the Bolshoi Kinel River (Kinelsky District) were also studied. The most common associations are (Salix fragilis heteroherbosa, Scirpus sylvaticus purum, Agrostis stolonifera Amoria repens, Elytrigia repens + Poa angustifolia heteroherbosa). In total, 19 types of phytocoenoses were noted, 4 of them are found in half of the studied rivers. In the plant communities of small river valleys there are 232 species of higher wild plants, which belong to 139 genera from 48 families. This is 60% of the total number of higher plants registered in the flora of small river valleys of the Samara Region. Rare protected plant species are registered here: Adonis volgensis Steven ex DC., Cacalia hastata L., Delphinium cuneatum Stev. ex DC., Globularia punctata Lapeyr.

scholarly journals Epimutations are associated with CHROMOMETHYLASE 3-induced de novo DNA methylation

eLife ◽  
2019 ◽  
Vol 8 ◽  
Author(s):  
Jered M Wendte ◽  
Yinwen Zhang ◽  
Lexiang Ji ◽  
Xiuling Shi ◽  
Rashmi R Hazarika ◽  
...  
Keyword(s):  
Dna Methylation ◽  
Plant Species ◽  
Dna Methyltransferase ◽  
Constitutive Heterochromatin ◽  
De Novo ◽  
Flowering Plant ◽  
Gene Body ◽  
Gene Body Methylation ◽  
Mechanistic Basis ◽  
Flowering Plant Species

In many plant species, a subset of transcribed genes are characterized by strictly CG-context DNA methylation, referred to as gene body methylation (gbM). The mechanisms that establish gbM are unclear, yet flowering plant species naturally without gbM lack the DNA methyltransferase, CMT3, which maintains CHG (H = A, C, or T) and not CG methylation at constitutive heterochromatin. Here, we identify the mechanistic basis for gbM establishment by expressing CMT3 in a species naturally lacking CMT3. CMT3 expression reconstituted gbM through a progression of de novo CHG methylation on expressed genes, followed by the accumulation of CG methylation that could be inherited even following loss of the CMT3 transgene. Thus, gbM likely originates from the simultaneous targeting of loci by pathways that promote euchromatin and heterochromatin, which primes genes for the formation of stably inherited epimutations in the form of CG DNA methylation.

scholarly journals Toevoegings tot die blomplantlys van die Bergkwagga Nasionale Park

Koedoe ◽  
1977 ◽  
Vol 20 (1) ◽  
Author(s):  
B.L. Penzhorn
Keyword(s):  
Plant Species ◽  
National Park ◽  
Flowering Plants ◽  
Flowering Plant ◽  
Check List ◽  
Flowering Plant Species

Additions to the check list of flowering plants of the Mountain Zebra National Park. Thirteen additional flowering plant species are reported from the Mountain Zebra National Park, increasing the total reported to 371 species.

scholarly journals Pollinator‐mediated interactions between cultivated papaya and co‐flowering plant species

2018 ◽  
Vol 9 (1) ◽  
pp. 587-597
Author(s):  
Raúl Badillo‐Montaño ◽  
Armando Aguirre ◽  
Miguel A. Munguía‐Rosas
Keyword(s):  
Plant Species ◽  
Flowering Plant ◽  
Flowering Plant Species

scholarly journals Floral preferences of a neotropical stingless bee, Melipona quadrifasciata Lepeletier (Apidae: Meliponina) in an urban forest fragment

2006 ◽  
Vol 66 (2a) ◽  
pp. 463-471 ◽  
Author(s):  
Y. Antonini ◽  
R. G. Costa ◽  
R. P. Martins
Keyword(s):  
Plant Species ◽  
Urban Forest ◽  
Flowering Plant ◽  
Forest Fragment ◽  
High Similarity ◽  
Paulo State ◽  
Melipona Quadrifasciata ◽  
Belo Horizonte ◽  
Flowering Plant Species ◽  
Bee Abundance

Species of plants used by Melipona quadrifasciata Lepeletier for pollen and nectar gathering in an urban forest fragment were recorded in Belo Horizonte, Minas Gerais, Brazil. Melipona quadrifasciata visited 22 out of 103 flowering plant species. The plant species belonged mainly to Myrtaceae, Asteraceae, and Convolvulaceae (64% of the visits). Melipona quadrifasciata tended to collect pollen or nectar each time, except for Myrtaceae species, from which both pollen and nectar were collected. Bee abundance at flowers did not significantly correlate to food availability (expressed by flowering plant richness). We found a relatively high similarity (50%) between plant species used by M. quadrifasciata, which was also found in studies carried out in São Paulo State. However, low similarity (17%) was found between the results of this study and those of another done in Bahia State, Brazil.

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