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標題: [生活小百科] Early Blight and Septoria Leaf Spot on Tomato Plants [打印本頁]

作者: 6t6t    時間: 2019-4-13 05:03 PM     標題: Early Blight and Septoria Leaf Spot on Tomato Plants

Early blight and Septoria leaf spot infections most commonly begin in the early or middle part of the growing season but ' O4 v7 v+ ?; y! m. U; ?9 k
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can start at any time. Infections can occur anywhere and are most severe in wet and humid areas.
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How to identify Early Blight5 K" {4 f. g: @& E
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Symptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to 3 S, y- @) a7 z; T/ V/ x) ?
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newer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown
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in color and form concentric rings, or a + x( ]7 t, ?' O5 E& |4 w\" H
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bullseye pattern
, as they grow. The area around the infection commonly turns yellow. As infections grow,
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leaves may fall off. Extensive loss
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; j' v$ d+ N0 f" q7 A- u公仔箱論壇of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。" Z- o" M/ Z& i' T. M2 @
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How to identify Septoria Leaf Spotos.tvboxnow.com% [% A  c. X- L
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Symptoms of Septoria leaf spot also start os.tvboxnow.com! K+ {8 v/ W6 |$ S6 Y" _& U! m

/ ?4 E* h' I1 G6 C6 w- Z( Vtvb now,tvbnow,bttvbon the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change
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shape as they grow and can merge with other spots. Spots typically have a dark brown edge with a lighter gray or tan center.
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Small dark spots, the fruiting bodies of the fungus& g/ n  }1 F8 E5 h/ v5 e% L% K

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, will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry
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and dead. Stems can also become infected but
3 a  B4 M! d7 V4 X9 wos.tvboxnow.comTVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。  y) C0 B& D/ _  W) F
infection of fruit
is rare.
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How to Prevent and Control Early Blight and ( ^6 y5 g\" T\" v( ^) i2 d

4 U1 R3 W3 u/ P4 K3 b+ a  gtvb now,tvbnow,bttvbSeptoria Leaf Spot

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Follow the 12 easy steps below to enjoy a
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of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes.
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Weed your garden. Some weeds,
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  S% n; e* J/ F" K# Yos.tvboxnow.comlike nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants.
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Rotate crop locations. Don’t
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/ a: [3 B1 F6 ]& p8 @TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。plant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas 3 C3 e. U# }& F9 ^% h+ x

4 _5 q& R+ B; d) N  wTVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。where tomatoes were grown.公仔箱論壇/ c3 ^+ @0 r0 O- q
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Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better.tvb now,tvbnow,bttvb/ P( c) `0 w. {9 u8 B6 B
Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of os.tvboxnow.com' I# |- g, g; ~; @

! r  I- c# O5 c+ T9 ~tvb now,tvbnow,bttvbfungus from the soil to your TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。! J/ ?0 Z* R% O* m* `
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plants.
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Stake or cage plants to keep them
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off the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and ' C: z- [2 O; @
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cages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of os.tvboxnow.com; O( D! {) J* i/ ?  ]  g* }
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space above the soil without any leaves. Do not use
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2 _$ A9 m% R! r4 e, N: ]overhead watering
.
+ Q' c9 {3 W( _8 Tos.tvboxnow.comAvoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants.
, I" C' t! \2 N' @$ t: pConsider using a soaker hose or drip tape. Water in the early part of the day. This allows leaves to dry faster. Wet leaves allow os.tvboxnow.com! d5 u  `; l9 g! Y
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fungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。* X5 H8 M, y4 t) x3 \" N
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wet. Keep your plants happy and healthy. Weak and stressed
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plants
are more susceptible to disease.TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。  t- x, d6 a7 R: g" a0 I; l
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Remove and destroy or throw away diseased leaves, both off the
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plants
plant and any that have fallen onto the ground. This may help stop the spread if caught early
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enough. If a plant is heavily infected, L\" n- K: z. `. T. M

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, the entire plant should be removed and destroyed. Do not put infected leaves or plants in a compost pile. Tools used tvb now,tvbnow,bttvb, G: F! p8 {$ m- l4 W

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Spray plants to prevent and control the
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Commercial fungicides are available. For organic gardens, try
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Late Blight on Tomato Plants
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& f+ a+ Q4 a0 X, r" z+ \TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato tvb now,tvbnow,bttvb. [  r  N. @3 G1 _

5 U  ]; P, V6 yplants in a garden. Once a tomato plant tvb now,tvbnow,bttvb8 ]8 `8 c. o. T4 [* W! p% M

6 k" ^- \, e9 m, R2 d! |TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。is infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small, os.tvboxnow.com9 J0 a  F+ Y% t# u0 {

# Z( h4 l; ?7 d4 J, o+ \' G5 y5 Xos.tvboxnow.comwater-soaked spots on leaves and stems that grow and turn dark brown or gray. A white downy growth may develop on the underside of infected leaves. Late blightos.tvboxnow.com' u6 U6 [) r  C( k. a4 \

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can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and os.tvboxnow.com7 Q1 x* ^6 Q0 x: X; \' R2 q
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Septoria leaf spot infections will also help prevent late blight infections.




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