Abstract
The stem borer, Sahyadrassus malabaricus (Moore) (Lepidoptera, Hepialidae) is a pest of several important forest trees. The distribution of the pest is limited to the Indian peninsula and there are no studies showing its existence outside this area. This study reports on the presence of pests in Indonesia and describes the character of their attacks on Trema orientalis L. Blume. The study was conducted on stands of T. orientalis on three cropping patterns; stands with mixed coffee (Coffea arabica L.), stands with mixed eggplant (Solanum betaceum Cav.), and pure stands. The magnitude of the incidence of attack was analyzed using analysis of variance while the distribution of attacked stands was analyzed using the nearest neighbor distance method. We concluded that the pattern of vertical distribution of attack points on individual stems tends to cluster at the base of the stem and the lower stem of the plant. Meanwhile, the distribution of the affected plants tends to be even. The presence of S. betaceum and C. arabica as mixed plants increased the incidence of stem borer attacks. We recommend against using complementary plants that role as alternative hosts for stem borer around T. orientalis stands.
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Claims 5
Claim · model-written summary
The stem borer Sahyadrassus malabaricus was found attacking Trema orientalis in Indonesia.
- Taxon
- Trema orientalis
Trema orientalee1 - Interactor
- Sahyadrassus malabaricuse0pest
- Outcome
- presence of pests in Indonesiae1
- Setting
- Indonesiae1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The stem borer, Sahyadrassus malabaricus (Moore) (Lepidoptera, Hepialidae) is a pest of several important forest trees”
e1“This study reports on the presence of pests in Indonesia and describes the character of their attacks on Trema orientalis L. Blume”
Claim · model-written summary
Mixed planting of Solanum betaceum and Coffea arabica with Trema orientalis increased stem borer attack incidence compared with pure stands.
- Taxon
- Trema orientalisTrema orientalee1
- Treatment
- presence of S. betaceum and C. arabica as mixed plantse2
- Interactor
- Sahyadrassus malabaricuse0pest
- Outcome
- incidence of stem borer attackse2
- Direction
- increasede2
- Comparator
- pure standse6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The stem borer, Sahyadrassus malabaricus (Moore) (Lepidoptera, Hepialidae) is a pest of several important forest trees”
e1“This study reports on the presence of pests in Indonesia and describes the character of their attacks on Trema orientalis L. Blume”
e2“The presence of S. betaceum and C. arabica as mixed plants increased the incidence of stem borer attacks”
e6“stands with mixed coffee (Coffea arabica L.), stands with mixed eggplant (Solanum betaceum Cav.), and pure stands”
Claim · model-written summary
Stem borer attack points on Trema orientalis cluster at the stem base and lower stem.
- Taxon
- Trema orientalisTrema orientalee1
- Interactor
- Sahyadrassus malabaricuse0pest
- Outcome
- pattern of vertical distribution of attack points on individual stemse3
- Qualifier
- cluster at the base of the stem and the lower stem of the plante3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The stem borer, Sahyadrassus malabaricus (Moore) (Lepidoptera, Hepialidae) is a pest of several important forest trees”
e1“This study reports on the presence of pests in Indonesia and describes the character of their attacks on Trema orientalis L. Blume”
e3“the pattern of vertical distribution of attack points on individual stems tends to cluster at the base of the stem and the lower stem of the plant”
Claim · model-written summary
The distribution of stem borer-affected Trema orientalis plants is even across stands.
- Taxon
- Trema orientalisTrema orientalee1
- Interactor
- Sahyadrassus malabaricuse0pest
- Outcome
- distribution of the affected plantse4
- Qualifier
- tends to be evene4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The stem borer, Sahyadrassus malabaricus (Moore) (Lepidoptera, Hepialidae) is a pest of several important forest trees”
e1“This study reports on the presence of pests in Indonesia and describes the character of their attacks on Trema orientalis L. Blume”
e4“Meanwhile, the distribution of the affected plants tends to be even”
Claim · model-written summary
Complementary plants that serve as alternative hosts for the stem borer should not be used around Trema orientalis stands.
- Taxon
- T. orientalisTrema orientalee5
- Outcome
- using complementary plantse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“We recommend against using complementary plants that role as alternative hosts for stem borer around T. orientalis stands”