scholarly journals Beneficial insect community of Moroccan citrus groves: assessment of their potential to enhance biocontrol services

2020 ◽  
Vol 30 (1) ◽  
Author(s):  
Moulay Chrif Smaili ◽  
Abdelmalek Boutaleb-Joutei ◽  
Abdelaali Blenzar
Keyword(s):  
Insect Community ◽  
Citrus Groves ◽  
Beneficial Insect

scholarly journals Beneficial insects are associated with botanically rich margins with trees on small farms

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Sarah E. J. Arnold ◽  
Filemon Elisante ◽  
Prisila A. Mkenda ◽  
Yolice L. B. Tembo ◽  
Patrick A. Ndakidemi ◽  
...  
Keyword(s):  
Natural Enemy ◽  
Crop Yields ◽  
Natural Habitat ◽  
Forest Fragments ◽  
Field Margins ◽  
Insect Community ◽  
Higher Plant ◽  
Insect Communities ◽  
Beneficial Insect ◽  
The Relationship

AbstractBeneficial insect communities on farms are influenced by site- and landscape-level factors, with pollinator and natural enemy populations often associated with semi-natural habitat remnants. They provide ecosystem services essential for all agroecosystems. For smallholders, natural pest regulation may be the only affordable and available option to manage pests. We evaluated the beneficial insect community on smallholder bean farms (Phaseolus vulgaris L.) and its relationship with the plant communities in field margins, including margin trees that are not associated with forest fragments. Using traps, botanical surveys and transect walks, we analysed the relationship between the floral diversity/composition of naturally regenerating field margins, and the beneficial insect abundance/diversity on smallholder farms, and the relationship with crop yield. More flower visits by potential pollinators and increased natural enemy abundance measures in fields with higher plant, and particularly tree, species richness, and these fields also saw improved crop yields. Many of the flower visitors to beans and potential natural enemy guilds also made use of non-crop plants, including pesticidal and medicinal plant species. Selective encouragement of plants delivering multiple benefits to farms can contribute to an ecological intensification approach. However, caution must be employed, as many plants in these systems are introduced species.

scholarly journals PENGARUH PERBEDAAN PENGELOLAAN AGROEKOSISTEM TANAMAN TERHADAP STRUKTUR KOMUNITAS SERANGGA PADA PERTANAMAN KEDELAI DI NGALE, KABUPATEN NGAWI, JAWA TIMUR

2015 ◽  
Vol 15 (1) ◽  
pp. 53
Author(s):  
Lutfi Afifah ◽  
Purnama Hidayat ◽  
Damayanti Buchori ◽  
Marwoto . ◽  
B T Rahardjo
Keyword(s):  
Community Structure ◽  
Pest Management ◽  
Management Systems ◽  
Insect Community ◽  
Soybean Crop ◽  
Chemical Management ◽  
Agroecosystem Management ◽  
Beneficial Insect ◽  
Soybean Plants ◽  
Pest Management Systems

Effect of different agroecosystem management on community structure of insects in soybean crop in Ngale, Ngawi District, East Java. Insect community structures in agroecosystem may always change. Agroecosystem management techniques affect insect community structure. The aim of this study was to determine the diversity and composition of insects on soybean plants under different pest management systems and varieties. The experiment design was split plot with varieties (Anjasmoro and Wilis) as the main plots and pest management systems (Integrated Pest Management (IPM), Non-Chemical Management (P-NK), Chemical Management (P-K), and Control) as the sub plots. There were ten insect sampling sessions for each plot. Samplings were done in June until September 2013 using pitfall traps, sticky traps, sweep net, and yellow pan traps. Statistically the results of experiment showed that varieties and pest management had no significant differences to the insects diversity. Herbivore and beneficial insect in soybean crop had differences composition between varieties Anjasmoro and Wilis. In both soybean Anjasmoro and Wilis varieties, herbivore populations tend to be higher in the control plots compared to the IPM plots. Abundance of decomposers, parasitoids, and predators tend to be higher in the control and P-NK plots which were without the use of synthetic insecticides compared to the IPM and P-K plots which were given the treatment of synthetic pesticides. This indicates that the use of pesticides causes decrease in the beneficial insect populations such as pollinator, parasitoids, and predators.

Identification and Management of Clustered Pellitory (Parietaria praetermissa) in Citrus Groves

EDIS ◽  
2019 ◽  
Vol 2019 (5) ◽  
pp. 3
Author(s):  
Ramdas Kanissery ◽  
Biwek Gairhe ◽  
Brent Sellers ◽  
Steve Futch
Keyword(s):  
Drip Irrigation ◽  
Early Summer ◽  
Irrigation Systems ◽  
Spray Pattern ◽  
Citrus Groves ◽  
Low Volume ◽  
Florida Citrus ◽  
Heavy Infestation

In Florida, clustered pellitory is becoming a troublesome weed for citrus, especially from the winter through early summer. Inadequate management of this weed can result in its heavy infestation in tree rows and can interrupt the spray pattern of low-volume drip irrigation systems. This new 3-page publication of the UF/IFAS Horticultural Sciences Department will assist Florida citrus growers with proper identification of clustered pellitory and with adoption of adequate and timely strategies to manage this weed in their groves. Written by Ramdas Kanissery, Biwek Gairhe, Brent Sellers, and Steve Futch. https://edis.ifas.ufl.edu/hs1341

scholarly journals Floral Plantings in Large-Scale Commercial Agroecosystems Support Both Pollinators and Arthropod Predators

Insects ◽  
2021 ◽  
Vol 12 (2) ◽  
pp. 91
Author(s):  
Eric G. Middleton ◽  
Ian V. MacRae ◽  
Christopher R. Philips
Keyword(s):  
Large Scale ◽  
Agricultural Land ◽  
Field Margins ◽  
Crop Fields ◽  
Pollinator Abundance ◽  
Arthropod Predators ◽  
Commercial Potato ◽  
Insect Populations ◽  
Beneficial Insect ◽  
Potato Crops

Beneficial insect populations and the services that they provide are in decline, largely due to agricultural land use and practices. Establishing perennial floral plantings in the unused margins of crop fields can help conserve beneficial pollinators and predators in commercial agroecosystems. We assessed the impacts of floral plantings on both pollinators and arthropod predators when established adjacent to conventionally managed commercial potato fields. Floral plantings significantly increased the abundance of pollinators within floral margins compared with unmanaged margins. Increased floral cover within margins led to significantly greater pollinator abundance as well. The overall abundance of arthropod predators was also significantly increased in floral plantings, although it was unrelated to the amount of floral cover. Within adjacent potato crops, the presence of floral plantings in field margins had no effect on the abundance of pollinators or predators, although higher floral cover in margins did marginally increase in-crop pollinator abundance. Establishing floral plantings of this kind on a large scale in commercial agroecosystems can help conserve both pollinators and predators, but may not increase ecosystem services in nearby crops.

Taxonomic sufficiency and effects of environmental and spatial drivers on aquatic insect community

2019 ◽  
Vol 107 ◽  
pp. 105624
Author(s):  
B.S. Godoy ◽  
A.P.J. Faria ◽  
L. Juen ◽  
L. Sara ◽  
L.G. Oliveira
Keyword(s):  
Aquatic Insect ◽  
Insect Community ◽  
Taxonomic Sufficiency

Foraging efficacy of the entomopathogenic nematode Steinernema riobrave in different soil types from California citrus groves

2010 ◽  
Vol 45 (3) ◽  
pp. 243-253 ◽  
Author(s):  
Roy Kaspi ◽  
Andrew Ross ◽  
Amanda K. Hodson ◽  
Glen N. Stevens ◽  
Harry K. Kaya ◽  
...  
Keyword(s):  
Entomopathogenic Nematode ◽  
Soil Types ◽  
Citrus Groves

Results of the Use of Concentrated Sprays in Citrus Groves in Florida

1948 ◽  
Vol 31 (2) ◽  
pp. 29
Author(s):  
John R. King ◽  
James T. Griffiths
Keyword(s):  
Citrus Groves

Insecticide sprays, natural enemy assemblages and predation on Asian citrus psyllid, Diaphorina citri (Hemiptera: Psyllidae)

2014 ◽  
Vol 104 (5) ◽  
pp. 576-585 ◽  
Author(s):  
C. Monzo ◽  
J.A. Qureshi ◽  
P.A. Stansly
Keyword(s):  
Natural Enemy ◽  
Early Spring ◽  
Citrus Greening ◽  
Asian Citrus Psyllid ◽  
Late Winter ◽  
Diaphorina Citri ◽  
Citrus Groves ◽  
Arthropod Fauna ◽  
Predator Exclusion ◽  
Insecticide Sprays

AbstractThe Asian citrus psyllid (ACP), Diaphorina citri Kuwayama is considered a key citrus pest due to its role as vector of ‘huanglongbing’ (HLB) or citrus greening, probably the most economically damaging disease of citrus. Insecticidal control of the vector is still considered a cornerstone of HLB management to prevent infection and to reduce reinoculation of infected trees. The severity of HLB has driven implementation of intensive insecticide programs against ACP with unknown side effects on beneficial arthropod fauna in citrus agroecosystems. We evaluated effects of calendar sprays directed against this pest on natural enemy assemblages and used exclusion to estimate mortality they imposed on ACP populations in citrus groves. Predator exclusion techniques were used on nascent colonies of D. citri in replicated large untreated and sprayed plots of citrus during the four major flushing periods over 2 years. Population of spiders, arboreal ants and ladybeetles were independently assessed. Monthly sprays of recommended insecticides for control of ACP, adversely affected natural enemy populations resulting in reduced predation on ACP immature stages, especially during the critical late winter/early spring flush. Consequently, projected growth rates of the ACP population were greatest where natural enemies had been adversely affected by insecticides. Whereas, this result does not obviate the need for insecticidal control of ACP, it does indicate that even a selective regimen of sprays can impose as yet undetermined costs in terms of reduced biological control of this and probably other citrus pests.

Sign in / Sign up

Export Citation Format

Share Document