Brontispa longissima pdf
This year’s 1 st half production dropped to 39.79 thousand or by 8.59 percent from 43.52 thousand mt in 2010 (Table 1). The study involves the effectiveness of potential black ants as biological agents in controlling beetle populations. The adults can last over 200 days, the larvae have five stars and last 30～40 days, the eggs 3～4 days and the pupae 5～6 days. A number of provinces of Philippines have infestations of Brontispa longissima, and quarantines have been declared to prevent further spread, including banning imports of coconuts palm seeds and seedlings from a number of countries.In addition, the Department of Agriculture and the Philippine Coconut Authority (PCA) have advocated trunk injections, spraying and the use of earwigs. Large areas of decay caused by the feeding of the hispine beetle, Brontispa longissima, on the variety Malayan Dwarf. It has recently invaded Southeast and East Asia, where it has caused serious damage to coconut plants.
25 (1):25-33 2 Introduction The heart of coconut1 (HOC) consists of the youngest organs of the coconut palm (Cocos nucifera L.) close to the apex of the stem i.e. An account is given of the damage caused by adults and larvae of Brontispa longissima (Gestro) to the young unopened fronds of coconut palms in the British Solomon Islands. IMPACTS The Hispid palm leaf beetle attacks palm leaf fronds (as the name suggests) especially those of the coconut tree. The invention discloses a composition containing acetamiprid for controlling brontispa longissima, which comprises effective components I and II and is characterized in that the component I is acetamiprid, the component II is flufenoxuron or emamectin benzoate, and the weight ratio of the component I to the component II is (1:60)-(60:1), preferentially, (4:1)-(20:1). Thirty-three components, representing 78.25% of the total oil, were identified by gas chromatography-mass spectrometry (GC-MS). Although its ecological and biological characteristics are well understood, its genetic information remains largely unknown.
Reapplication of the spore solution on the breeding site is unnecessary for a period of up to 24 months. g The beetle was carried through imported ornamental plants from infested countries. the terminal bud, leaf primordia, youngest folded leaves and upper tissues of the stem. A total of 14 villages of Maluku Province were surveyed and Brontispa-atatcked coconut palms were observed.
A report on the evaluation of selected systemic insecticides against Brontispa longissima or Coconut leaf beetle and determination of their effective rates of application. You are free: to share – to copy, distribute and transmit the work; to remix – to adapt the work; Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. Adult of Brontispa longissima Note: The larvae and adults are mostly found in partially opened spears/young fronds NATIONAL PARKS BOARD RESEARCH TECHNICAL GUIDE 02/2008 HOW TO SAVE PALMS FROM HISPID BEETLE ATTACKS This note is made possible from a collaborative project with Agri-Food & Veterinary Authority of Singapore. Barcode for coconut leaf beetle, Brontispa longissima, a potential invasive pest, has also been generated. To elucidate the effect of aggregation on larval developmental aspects, we examined the effects of larval density on various aspects of larval development and on survival rates. Acevedo Abstract: This study was conducted to describe variations in the shapes of the elytra, head and pronotum of populations of adult Brontispa longissima (Gestro) infesting coconut farms from selected areas in the Philippines using Cluster Analysis, Relative Warp Analysis coupled with box plot and histograms and Procustean analysis.
The larva of B.longissima had four instars before became to pupation.
Abstract The coconut hispine beetle, Brontispa longissima Gestro is an invasive pest in Southeast Asia.Since chemical control of the beetle is not recommended due to its high cost and risk to the environment, biological control is a desirable tool for effective control of this pest. Brontispa longissima is the most serious pest of coconut palms in Hainan where 11 species of palms have been attacked. Studies have also shown body sizes in Brontispa longissima varies but no study was done on the body shape. The invention discloses a compounded composite for controlling rice fulgorid and other insects, which relates to effective components of pesticides containing nitenpyram, buprofezin, etc. Its larvae and adults feed on tissues of the developing leaves of the coconut palm. Essential oils from flesh fingered citrons were obtained by mechanical pressing extraction under optimal conditions. Normally, only young palms less than 10 years old are severely attacked, but this has interfered seriously with replanting programmes.
Adult hispine beetles, Brontispa longissima, between the leaflets of the spear leaf. Studies have also shown body sizes in Bront ispa longissima varies but no study was done on the body shape. Brontispa longissima Philippine Coconut Authority Bureau of Plant Industry the enforced isolation for a fixe period of persons, ships, or goods arriving from places infected with contagious disease, or of any persons who have been exposed to such infection.
Brontispa longissima is one of the most damaging pests of coconut in Asia and the Pacific and has spread to new areas in the region at a rapid pace. There is a r eported decline in the productivity of palm plants when the pest attack reaches 30-40% with 5% of the plants attacked dying. As our ongoing work on research of natural-product-based insecticidal agents, eighteen podophyllotoxin analogues with diverse chemical structures were evaluated for their insecticidal activities against the pre-fourth-instar larvae of Athetis dissimilis Hampson in vivo at the concentration of 1 mg/mL. Beetle or Brontispa Longissima which attackyoung coconut leaves and mature coconut palm by restricting growth and significantly reduce coconut yields. The beetle can cause significant production losses, and high infestation levels may result in tree death. Both larva and adult are destructive, inhabiting in the developing and unopened spear leaves of the coconut where they feed on the leaf tissues. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. The larvae and adults of the beetle feed on the soft tissues of the youngest leaf in the throat of the palm.
characteris tic damage becomes apparent when the young fronds open.
Abstract: Four coconut plantations were sampled in Western Samoa during early 1985 with the aim of finding the most important natural mortality factors for the chrysomelid Brontispa longissima. morio was conducted, particularly its developmental duration, survival, fecundity and sex ratio. On Coconut Scale Insect - WHEREAS, the Coconut Scale Insect or C51 or COCO-Ll5AP infestation was detected as early as March, 2010 in barangay Balele, Tanauan Batangas. The feasibility of the controlling coconut leaf beetle (Brontispa longissima) with introducing natural enemies Asecodes hispinarum, Chinese Bulletin of Entomology42 (3): 254-258. The number of egg per female averaged 140.30 eggs and the incubation period was 7.85 days. Severely decayed leaves of Malayan dwarf seedling caused by the coconut hispine beetle, Brontispa longissima. Plants means live plants, parts of plants for propagation, cut flowers and foliage, but excludes fruit and processed plant materials. Biological study of the coconut hispine beetle, Brontispa longissima Gestro (Coleoptera: Hispidae) found that the female adult laid the eggs singly or in groups on between and inside unopened leaves of coconut at night.
Coconut Hispid Beetle, (Brontispa longissima) distresses seedlings, mature coconut trees and other palms, speciﬁcally palms up to ﬁve years old are at the greatest risk of infestation. Brontispa longissima Coconut leaf beetle Introduction: The coconut leaf beetle (Brontispa longissima) is one of the most damaging pests of coconut and other palms. Outbreaks of invasive pest species, such as Brontispa longissima (Gestro) on coconut, provide additional opportunities to use the Farmer Field School to educate coconut farmers about biological control. Despite the economic risk associated with this pest, genetic aspects of the invasion process have remained relatively unexplored. Defoliators General Insects 10007 10601 clerid beetle Miscellaneous Insects and Allies General Insects 10008 13032 weevil Other Chewing Insects and Allies General Insects 10009 12227 green rose chafer .
As the spear unfurls the beetle moves on to other palms or the next emerging spear. Both females and males showed wandering behavior before the encounter, waving their antennae. Lead paper presented in the Special Group Meeting on Brontispa longissima held at National Bureau of Agriculturally Important Insects, Bangalore, November 21, 2009, Bangalore. This study aimed to determine the attack level of B.longissima on dwarf and tall varieties and the number of fruit in Solok Regency.