Spiders as biological controllers in the agroecosystem

Chatterjee, Samrat; Isaia, Marco; Venturino, Ezio

doi:10.1016/j.jtbi.2008.11.029

Cited by 35 publications

(24 citation statements)

References 15 publications

(44 reference statements)

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“…However, the adverse effects of pesticides on beneficial arthropod populations are widely known (Geiger et al, 2010), and pesticide application can lead to the extermination of spiders (Chatterjee, Isaia, & Venturino, 2009). To balance the risks and benefits of pesticide application, scientific methods such as reduced-area or reduced-agent treatment (Lockwood et al, 2002) should be introduced to Inner Mongolia.…”

Section: Discussionmentioning

confidence: 99%

Influence of Agricultural Activities on Grassland Arthropods in Inner Mongolia

Sorgog¹,

Saito²,

Hironaka³

et al. 2012

ENRR

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Arthropod pest outbreaks are becoming more common in the grasslands of Inner Mongolia, China, most likely due to the expansion of agriculture. The area of cropland has increased from 43,300 km 2 in 1949 to 76,300 km 2 in 2005. To understand the effects of agricultural activities on arthropod distribution, sweep net sampling was conducted in a natural grassland. We collected 1287 individuals belonging to 23 families and 9 orders of arthropods from 41 sites. We divided these samples into two guild types (predator and herbivore) and analyzed six groups (grasshoppers, herbivorous Coleoptera, herbivorous Hemiptera, Cicaddidae, Araneae, predatory Coleoptera) of them. Using a negative binomial regression analysis we analyzed the relationships between each group's sampled population size and measured environmental factors including pesticide application and mean temperature of the previous year, agricultural site, and vegetation condition. The best model for each group was determined using Akaike's information criterion. Grasshoppers showed a significant positive response to pesticide application and degraded vegetation, whereas spider (natural enemies of some insect pests) showed a negative response to these factors. The population of grasshoppers increased at sites where pesticides were applied, vegetation was degraded, and spider numbers were reduced. Other groups were not significantly correlated with pesticide application and degraded vegetation. Some of the environmental factors we studied promoted pests the following year. Our results also suggest that the current use of pesticides may not be effective for pest control and that alternative options should be considered in the grasslands of Inner Mongolia.

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Section: Discussionmentioning

confidence: 99%

Influence of Agricultural Activities on Grassland Arthropods in Inner Mongolia

Sorgog¹,

Saito²,

Hironaka³

et al. 2012

ENRR

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“…In a different situation, looking at agroecosystems without explicitly building a control problem, we mention also the use of spiders for fighting pests in fruit orchards and vineyards, [31,139].…”

Section: Harvesting and Controlmentioning

confidence: 99%

Ecoepidemiology: a More Comprehensive View of Population Interactions

Venturino

2015

Math. Model. Nat. Phenom.

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Abstract. Models proposed for the description of population interactions with pathogenic agents are presented. We review some basic quadratic-interactions models, then move to more complex demographics, structured models, models involving several populations, delays, plankton dynamics, the Allee effect and group behavior. In most of these cases basic reproduction numbers are evaluated and commented.

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“…Laba-laba adalah predator polifag sehingga berpotensi untuk mengendalikan berbagai spesies serangga hama (Nyffeler & Sunderland 2003;Chatterjee et al 2009). Labalaba mampu menempati berbagai macam habitat sehingga bisa berpindah dari satu habitat ke habitat lainnya bila mengalami gangguan (Suana et al 2005;Öberg et al 2008;Hogg & Daane 2010).…”

Section: Pendahuluanunclassified

Keanekaragaman laba-laba dan potensinya sebagai musuh alami hama tanaman jambu mete

Suana

Haryanto

2015

J Entomol Indones

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Sanurus sp., Acrocercops sp. dan Helopeltis sp. merupakan hama-hama penting tanaman jambu mete yang dilaporkan di Nusa Tenggara Barat. Penggunaan pestisida untuk mengendalikan hamahama tersebut ternyata kurang berhasil sehingga dicari alternatif, yaitu dengan menggunakan musuh alami. Laba-laba merupakan salah satu musuh alami yang ditemukan di perkebunan jambu mete. Tujuan penelitian ini adalah untuk mengetahui keanekaragaman dan potensi pemangsaan laba-laba di perkebunan jambu mete. Penelitian dilakukan di Dusun Jugil, Desa Sambik Bangkol, Lombok Utara. Pemangsaan laba-laba diamati secara langsung selama 78 hari, mulai bulan Mei sampai Agustus 2009. Formula Edgar digunakan untuk mengetahui pemangsaan laba-laba per hari. Hasil penelitian menemukan 19 spesies dari delapan famili laba-laba. Kelimpahan Neoscona theisi lebih tinggi daripada Tetragnatha maxillosa, tetapi proporsi N. theisi dengan mangsa lebih rendah daripada T. maxillosa, sehingga kemelimpahan laba-laba pada pertanaman jambu mete belum tentu menunjukkan potensinya sebagai musuh alami. N. nautica memangsa lebih banyak dibandingkan dengan N. theisi, yaitu berturut-turut 3,84 dan 1,67 mangsa per hari. Tidak semua mangsa N. nautica merupakan hama tanaman jambu mete, sebaliknya semua mangsa N. theisi merupakan hama tanaman jambu mete. Hal ini menunjukkan bahwa, jumlah mangsa yang dimangsa laba-laba per hari tidak secara langsung menunjukkan potensinya sebagai musuh alami.

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Spiders as biological controllers in the agroecosystem

Cited by 35 publications

References 15 publications

Influence of Agricultural Activities on Grassland Arthropods in Inner Mongolia

Influence of Agricultural Activities on Grassland Arthropods in Inner Mongolia

Ecoepidemiology: a More Comprehensive View of Population Interactions

Keanekaragaman laba-laba dan potensinya sebagai musuh alami hama tanaman jambu mete

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