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Ukrudt / Weeds
Sprøjtecertifikat delprøve2
14
Biology
10th Grade
02/08/2016

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Cards

Term
Hvilken plante hører til gruppen ”frø-ukrudt”?

Which plant belongs to the group "annual weed"?

1. Fuglegræs / Chick weed
2. Kvikgræs / Couch grass
3. Agertidsel / Creeping thistle
4. Padderok / Common horsetail
Definition
1. Fuglegræs / Chick weed
Term
Hvilken af de nævnte planter tilhører de 2-kimbladede:

Which of these plants belong to the dicotyledonous:

1. Enårig rapgræs / Annual meadowgrass
2. Agertidsel / creeping thisle
3. Kvik / Couch grass
4. Padderok / common horsetail
Definition
2. Agertidsel / Creeping thisle
Term
Ved hvilket udviklingstrin bekæmpes frøukrudt bedst?

At what stage of development are annual weeds controlled best?
Definition
Lige efter fremspiring
I kimbladsstadiet
Max. et løvblad

Just after germination
In the cotyledon stage
Max. one foliage leaf
- alle svar er OK
Term
På hvilke 2 måder kan et jordherbicid virke?

Mention 2 ways a soil herbicide can word
Definition
Spirehæmmende og systemisk

Germinate retardant and systemic
Term
Nævn 3 overordnede metoder til brug ved ikke-kemisk ukrudtsbekæmpelse

Mention 3 main not-chemical ways to controld weeds
Definition
1. Mekanisk jordbearbejdning (fræse, harve, plov m.m.)
2. Termisk ukrudtsbekæmpelse (damp og flammebehandling)
3. Jorddækning (flis, halm, mypex m.m.)

1 Mechanical tillage (milling, harrow, plow, etc.)
2 Termic weed control (steam and flame treatment)
3 Surface mulch (wood chips, straw, mypex etc.)
Term
Hvilken plante er énkimbladet?
What plant is monocotyledonous?

1. Kvikgræs / Couch grass
2. Mælkebøtte / Dandelion
3. Fuglegræs / Chick weed
4. Liden nælde / drawf neetle
Definition
1. Kvikgræs / Couch grass
Term
Hvilken plante er rodukrudt
Which plant is a perennial weed?

1. Tidsel / Thistle
2. Lugtløs kamille / Scendless Camomile
3. Hyrdetaske / Shepherd's purse
4. Fuglegræs / Chickweed
Definition
1. Tidsel / Thistle
Term
Hvordan virker et svidningsmiddel?

How does a scorching agent work?
Definition
Virker hvor det rammer - ved kontakt

Where it hits - by contact
Term
Hvad vil det sige når et pesticid er selektivt?

What does it mean when a pesticide is selective?
Definition
Selektivitet betyder, at du ønsker ukrudt / skadedyr / sygdomme slået ihjel, mens afgrøden eller nytteinsekterne overlever

Selectivity means you wish the weeds / pests / diseases killed while the crop or beneficial insects are spared
Term
Hvad betyder persistens?

What does persistance mean?
Definition
Den periode,det tager før ukrudtsmidlet / pesticid er forsvundet (nedbrudt)

The period of time it takes before the herbicide / pesticide has disappeard (decomposed)
Term
Giv 3 kendetegn for en-kimbladede

Mention 3 characteristics of monocotyledonous
Definition
Bladnerver i stænglen er spredte, Bladene er buede eller ligenervede. Blomsten er 3-tallig. Eksempler: Græsser, palmer, løg og knolde

Vessels in the stem are scattered, the leaves are bow- or straight nerved. The flower is 3-numbered. Examples: Grasses, palms, bulbs and tubers
Term
Giv 3 kendetegn for to-kimbladede

Mention 3 characteristics of diocotyledonous
Definition
Ledningsstrengene i stænglen ligger i en ring. Nerverne i bladene er normalt fjer-, stjerne- eller håndnervede. Blomsten er sædvanligvis 5 tallig, men kan også være 4-tallig

Vessels in the stem is in a ring.
The nerves in the leaves are usually pinnate, rotate or palmate. The flower is usually 5 numbered, but may also be 4-numbered
Term
Hvordan virker jordherbicider?

How do soil herbicides work?
Definition
Optages via de underjordiske plantedele - rødder, underjordiske skud og frø og virker som hovedregel systemisk. Kan også virke spirehæmmende på frø

Is absorbed through the underground parts of plants - roots, underground shoots and seeds and acts normally systemic. Can also inhibit germination of seeds
Term
Hvordan virker bladherbicider?

How do leaf herbicides work?
Definition
Absorberes gennem de grønne plante blade, stængler og skud.
Bladherbicider kan virke ved kontakt (svidningsmidler) eller systemisk (hormoner eller andet)

Is absorbed through the green plant leaves, stems and shoots.
Leaf herbicides can work by contact (svidningsmidler) or systemic (hormonal or otherwise)
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