WEED IDENTIFICATION - PowerPoint PPT Presentation

1 / 136
About This Presentation
Title:

WEED IDENTIFICATION

Description:

WEED IDENTIFICATION TRI-CO. YOUNG FARMERS MARCH 7, 2002 Original Power Point Created by Joey Wells Modified by Georgia Agricultural Education Curriculum Office – PowerPoint PPT presentation

Number of Views:4949
Avg rating:5.0/5.0
Slides: 137
Provided by: mcboe8
Category:

less

Transcript and Presenter's Notes

Title: WEED IDENTIFICATION


1
WEED IDENTIFICATION
  • TRI-CO. YOUNG FARMERS
  • MARCH 7, 2002

Original Power Point Created by Joey Wells
Modified by Georgia Agricultural Education
Curriculum Office June 2002
2
WHAT IS A WEED?
  • A weed is a plant out of place.

3
WHAT EFFECTS DO WEEDS HAVE ON US TODAY?
4
WEEDS LOWER THE YIELD OF CROPS -
  • COMPETE FOR WATER, NUTRIENTS, LIGHT, AND SPACE.
  • ONE WILD MUSTARD PLANT USES AS MUCH N P AS TWO
    OAT PLANTS
  • ONE PIGWEED PLANT MAY USE AS MUCH WATER AS A CORN
    PLANT

5
WEEDS LOWER THE QUALITY OF CROPS -
  • WEEDS AFFECT THE QUALITY OF HAY AND GRAIN USED
    FOR LIVESTOCK
  • MILK WILL TASTE LIKE WILD GARLIC OR BITTER
    SNEEZEWEED IF EATEN
  • WEEDS CAN STAIN THE LINT OF COTTON

6
WEEDS INTERFERE WITH CROP HARVEST -
  • CAUSES DELAYS AND GREATER HARVEST LOSS.
  • GRAIN MAY NEED DRYING IF HEAVILY INFESTED BY WEEDS

7
THE LIFE CYCLE OF WEEDS
8
THERE ARE FOUR TYPES OF WEEDS BASED ON THEIR LIFE
CYCLE
  • SUMMER ANNUALS
  • WINTER ANNUALS
  • BIENNIALS
  • PERENNIALS

9
SUMMER ANNUALS
  • GERMINATE IN THE SPRING AND DIE IN THE FALL AFTER
    THE FIRST FROST
  • SEEDS MATURE AND SCATTER
  • MOST LIE DORMANT UNTIL SPRING
  • EXAMPLES MORNING GLORY, PIGWEED, COCKLEBUR, AND
    CRABGRASS

10
WINTER ANNUALS
  • GERMINATE IN THE FALL OR WINTER
  • PRODUCE SEED IN THE EARLY SUMMER AND THEN DIE
  • SEEDS LIE DORMANT DURING THE SUMMER MONTHS
  • EXAMPLES WILD MUSTARD, CHICKWEED, AND HENBIT

11
BIENNIALS
  • PRODUCE VEGETATIVELY FROM SEED THE FIRST SEASON
  • BECOME DORMANT OVER THE WINTER
  • PRODUCE FLOWERS AND SEED THE SECOND SEASON
  • EXAMPLES MUSK THISTLE, WILD CARROT, AND COMMON
    MULLEIN

12
PERENNIALS
  • LIVE FOR THREE OR MORE YEARS
  • MOST PRODUCE SEED EACH YEAR AFTER ESTABLISHMENT
  • DIVIDED INTO THREE CLASSES ON THE BASIS OF
    REPRODUCTION
  • SIMPLE PERENNIAL
  • BULBOUS PERENNIAL
  • CREEPING PERENNIAL

13
SIMPLE PERENNIAL
  • REPRODUCE PRIMARILY BY SEED
  • EXAMPLE - DANDELION

14
BULBOUS PERENNIAL
  • PROPAGATE BY BULBS OR BULBLETS AS WELL AS BY SEED
  • EXAMPLES WILD ONION AND WILD GARLIC

15
CREEPING PERENNIAL
  • PROPAGATE BY MEANS OF RHIZOMES (UNDERGROUND
    STEMS), STOLONS (ABOVE GROUND STEMS), OR
    SPREADING ROOTS OR TUBERS, AS WELL AS BY SEED.
  • EXAMPLES JOHNSONGRASS gt RHIZOMES AND SEED
    BERMUDA GRASS gt RHIZOMES, STOLONS, SEED

16
(No Transcript)
17
CARPETWEED
18
REDROOT PIGWEED
19
SPINY AMARANTH
20
POISON IVY
21
HONEYVINE MILKWEED
22
BUTTERFLY MILKWEED
23
TRUMPETCREEPER
24
JAPANESE HONEYSUCKLE
25
CORN COCKLE
26
HEARTLEAF DRYMARY
27
MOUSEEAR CHICKWEED
28
COMMON CHICKWEED
29
COMMON LAMBSQUARTERS
30
ASIATIC DAYFLOWER
31
HEMP DOGBANE
32
BRISTLY STARBUR
33
COMMON YARROW
34
COMMON RAGWEED
35
GIANT RAGWEED
36
MAYWEED CHAMOMILE
37
WHITE HEATH ASTER
38
SPANISHNEEDLES
39
CORNFLOWER
40
BLESSED THISTLE
41
ECLIPTA
42
ANNUAL FLEABANE
43
HORSEWEED
44
DOGFENNEL
45
HAIRY GALINSOGA
46
CUDWEED
47
BITTER SNEEZEWEED
48
CAMPHORWEED
49
PRICKLY LETTUCE
50
CAROLINA FALSE DANDELION
51
GROUNDSEL
52
GOLDENROD
53
SOWTHISTLE
54
DANDELION
55
COMMON COCKLEBUR
56
DICHONDRA
57
FIELD BINDWEED
58
DODDER
59
BIGROOT MORNINGGLORY
60
TALL MORNINGGLORY
61
CYPRESSVINE MORNINGGLORY
62
SMALLFLOWER MORNINGGLORY
63
WILD MUSTARD
64
SHEPHERDSPURSE
65
SWINECRESS
66
VIRGINIA PEPPERWEED
67
CITRONMELON
68
WILD CUCUMBER
69
BURCUCUMBER
70
YELLOW NUTSEDGE
71
PURPLE NUTSEDGE
72
VIRGINIA COPPERLEAF
73
WOOLLY CROTON
74
TROPIC CROTON
75
SPOTTED SPURGE
76
REDSTEM FILAREE
77
CAROLINA GERANIUM
78
BROOMSEDGE
79
BROADLEAF SIGNALGRASS
80
BERMUDAGRASS
81
CROWFOOTGRASS
82
LARGE CRABGRASS
83
BARNYARDGRASS
84
GOOSEGRASS
85
LITTLE BARLEY
86
FIELD SANDBUR
87
TORPEDOGRASS
88
TEXAS PANICUM
89
VASEYGRASS
90
ANNUAL BLUEGRASS
91
FOXTAIL
92
JOHNSONGRASS
93
SMUTGRASS
94
HENBIT
95
FLORIDA BETONY
96
PARTRIDGE PEA
97
SICKLEPOD
98
SHOWY CROTALARIA
99
FLORIDA BEGGARWEED
100
KUDZU
101
HEMP SESBANIA
102
WINTER VETCH
103
WILD GARLIC
104
ROUNDLEAF GREENBRIAR
105
PRICKLY SIDA
106
CUTLEAF EVENINGPRIMROSE
107
PRICKLYPEAR
108
YELLOW WOODSORREL
109
MAYPOP PASSIONFLOWER
110
COMMON POKEWEED
111
BRACTED PLANTAIN
112
BUCKHORN PLANTAIN
113
BROADLEAF PLANTAIN
114
KNOTWEED
115
PENNSYLVANIA SMARTWEED
116
RED SORREL
117
REDVINE
118
CURLY DOCK
119
BROADLEAF DOCK
120
EASTERN BRACKENFERN
121
COMMON PURSLANE
122
BUTTERCUP
123
BLACKBERRY
124
POORJOE
125
FLORIDA PUSLEY
126
WITCHWEED
127
COMMON MULLEIN
128
JIMSONWEED
129
SMOOTH GROUNDCHERRY
130
HORSENETTLE
131
SILVERLEAF NIGHTSHADE
132
BLACK NIGHTSHADE
133
WILD CARROT
134
PROSTRATE VERVAIN
135
BLUE VERVAIN
136
PEPPERVINE
Write a Comment
User Comments (0)
About PowerShow.com