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Facts About. Spiny threecorner-Jack is native to Mediterranean Africa, but has made its way around the world. It has a patchy distribution in the U.S. and is. Emex spinosa (spiny emex, devil’s-thorn) is an annual (family Polygonaceae) found on California’s south coast. This Mediterranean native is not yet common in . Emex Campd. Environment. terrestrial. Original description. Not documented. Taxonomic citation. WoRMS (). Emex spinosa. Accessed at.

Members of the Polygonaceae including Emex spp. Achenes are dimorphic with large mg and not very spiny subterranean achenes formed, attached to the crown near the neck of the root and smaller Naturally disturbed areas colonized by E. Host range of Brachycaudus rumexicolens Patchand aphid associated with the Polygonaceae. This makes control of Emex more difficult as new waves of seedlings may emerge with each subsequent major rainfall events throughout the season Weiss, Chemical control of Emex sp.

In Australia, where both species coexist, the degree of dormancy varies with the collection site, but the achenes zpinosa E. Emex spinosa is able to colonize and then persist and even thrive within extremely hostile and unpredictable habitats primarily because of the two types of achenes i. Weed control in transplant Chinese cabbage.

Emex spinosa

Views Read Edit View history. Regional Flora of Santa Monica Mountains. From the patterns of infestations, Weiss and Julien suspect vehicles transported E.

The same pre-requirements also result in aerial achenes germinating several days after subterranean achenes in response to suitable germination conditions. Journal of Economic and Taxonomic Botany, 5: Weiss found the subterranean achenes of E. In Australia, where both species co-exist, the plants readily hybridize, with hybrids growing more vigorously than either parent but are completely sterile when self-pollinated Putievsky et al.

The achenes of E. Graham, ; Agnew, ; Holm et al.

Biological Control In Australia, E. Title Habit Caption A large E. It should, however, also be affecting E. The basal leaves are usually the longest, lamina up to 15 cm, and become smaller, down to 3 cm, moving along the stem and away from the crown.

Emex spinosa (spiny emex)

Spunosa are hairless and linear and the first leaf is oval with an acute apex Gilbey and Weiss,whereas subsequent leaves are more triangular with an indented, heart-shaped base Wilding et al.

Utilizing existing natural enemies to enhance the control of Emex australis in south-west Australia. Legal and economic constraints on Emex. In some areas of the Avdat floodplain, water runoff collects even in drought years due to topographical reasons and in these locations E.

Also covers those considered historical not seen in 20 years.

Shortly after pollination, the fruits formed in the axils of the rosette leaves start to develop, but the plant’s contractile fleshy tap root pulls the young fruit below the soil surface where they complete development, becoming ‘subterranean’ achenes von Murbeck, They then dry up during early summer to leave hillsides devoid of living vegetation and subject to sheet erosion Goeden, Predicting the distribution of Emex in Australia.

The long-term viability of the seeds, with their staggered emergence so that only one or two progeny from the same mother plant germinate in any particular year, safeguards against the occasional season that is unsuitable for reproduction even in previously proven habitats.

It is considered noxious or declared requiring control or eradication in parts of every state in Australia and is noxious and prohibited not to be introduced and spinoea be eradicated if found in Tasmania Bowran, Journal of Range Management, 5: Committee for Mapping of the Flora of Europe.

Weed Control Apr WC Name and classification Emex spinosa L. Siddiqi reports E.

International Common Names English: Siddiqi reports that on each of the three flat faces emez spines are six small pits, although the actual number of small pits can vary with pits per face being reported in Parsons and Cuthbertson Jalas and Suominen,

Form (6-pt), Standard Form 44, and DD Forms. and paper. The DD Form (6-pt) is for requisitioning. · Engineering Investigation Reports. (1) GSA Form (6–PT), GSA Single Line Item Requisition System Document (MANUAL) (illustrated at § –––(6–PT)). (2) GSA Form –4. (1) GSA Form (6-PT), GSA Single Line Item Requisition System Document ( MANUAL) (illustrated at § (6-PT)). (2) GSA Form

Most of the columns in the log are self-explanatory, but you should observe the following general rules:.

It is assigned to a requisition to determine the time that 6ppt requirement will be processed by the supply system. Keep the use of the DD Form to a minimum. Requisition files are established according to the types of accounting funds involved. Requisition Forms There are several methods to requisition material. Supply status is usually received on a DD Form m mechanical. Too many status codes exist to identify them all in this training manual. A requisition that has been only partially filled is retained in the outstanding file 148 action is either completed or canceled.

The status document may also challenge an order. In addition, the file provides a central location for use as a reference for follow-up action. 6t form is almost identical to a DD Form manualexcept that the DD Form m is a computer punch card and all pertinent information is printed across the top of the card.

REQUISITIONING PROCEDURES

Unit and detachment commanding officers and officers-in-charge are not designated as contracting or ordering officers and are not authorized to purchase these items. Most of the columns in the log are self-explanatory, but you should observe the following general rules: See figure 9 DD Form There are several methods to requisition material.

The purpose of this file is to have receipt documents immediately available for processing when the material is received. The term outstanding denotes material that has been requisitioned, but has not yet 6ppt received or canceled by the activity.

When status information is received, it should be reviewed immediately to determine the purpose of the document and whether any action is required by the receiving activity. Table shows the priority designators. Requisitions for material must be submitted to various stocking points, depending on the items required.

When material is requisitioned, moved, or issued, it is necessary to set a common basis of determining the importance of competing demands for resources in the logistics systems. When you close out the log each month and at the end of the fiscal year, ensure that the proper entries have been made, the columns are totaled, and the transmittal number is posted at the end of the period cover.

Requisition Submissions Requisitions for material must be submitted to various stocking points, depending on the items required.

Extreme care must be taken to ensure that you will not make a commitment of government funds without approval from the supporting supply activity. The supply status keeps an activity informed as to the action being taken by supply activities furnishing the requested material. When requisitioned material is received or canceled, all related documents are placed in a material completion file.

Pass complete!

It is divided into three sections: Each unit and detachment must establish a requisition log in which all requisitioning documents are recorded. Requisition Files Requisition files are established according to the types of accounting funds involved. This section discusses each of these procedures. Each requisition file is maintained on a fiscal year basis by document number sequence Julian date and serial number. Number each page sequentially.

A commitment of funds without prior approval can result in your personal acceptance of the financial obligation. Be sure to provide all the data that is required. Completed Requisitions When requisitioned material is received or canceled, all related documents are placed in a material completion file. Under certain circumstances, if an activity fails 6tp respond to a status document within a specified period of time, the requisition is canceled automatically.

Complete issue (manual) documentation on DD Form (6-pt)

It may not be used to order publications. A challenge requires the requisitioner to justify the requested material. Status documents may cancel an existing requisition, provide backorder information or shipping status, represent passing actions, or modify an order.

Occasionally, a piece of equipment or a part for an underwater mine will not have an assigned stock number. As a member of the supply department, you must be aware of the various codes your activity may encounter.

However, the 6ph Form is the proper form to use. The file may also be used for all other actions that have been taken on a particular document. When a procurement document is submitted, a copy of the document is placed in the outstanding files.