[生活小百科] 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 4 e$ C/ n8 D: u8 [. s
公仔箱論壇3 m' J( H# g4 k! }
can start at any time. Infections can occur anywhere and are most severe in wet and humid areas.www2.tvboxnow.com. n  V1 }' m  p- O* S' o

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。% d' Z. d9 r# L9 X' w
How to identify Early Blight

Symptoms of early blight typically begin on the older, lower leaves of a tomato plant. Over time, infections spread upward to

newer growth. Early blight infections appear as spots that may start out circular or irregular in shape. Spots are dark brown " M3 ]& Q/ t( v, V* s4 X; j( p
www2.tvboxnow.com5 F1 t& t  ?2 t: }1 ?1 \# F7 [2 j" e
in color and form concentric rings, or a

bullseye pattern, as they grow. The area around the infection commonly turns yellow. As infections grow, 公仔箱論壇$ T2 G, i' I6 c" Y* P' t
www2.tvboxnow.com6 P2 Z& U( N/ o# j0 O
leaves may fall off. Extensive loss
4 j) W: V4 }( r* O
of foliage is common. Infections most commonly occur on leaves but can also appear on stems and fruit.1 G+ K0 C* ~. |& F

( F9 h5 H& B3 f* p2 ]' j
How to identify Septoria Leaf SpotTVBNOW 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。( c. k2 X/ p- l& ]5 s- L( F" @

Symptoms of Septoria leaf spot also start tvb now,tvbnow,bttvb4 z4 n; g! n3 E# M
www2.tvboxnow.com$ B' m4 G! P, F6 \& _4 i( ~
on the older, lower leaves of a tomato plant and spread upward to newer growth. The spots start out circular but change
0 Z3 h, w1 b) {5 O
shape as they grow and can merge with other spots. Spots typically have a dark brown edge with a lighter gray or tan center.
7 \/ U  W  Q4 v- `" o: i
Small dark spots, the fruiting bodies of the fungus
2 ^$ l- M# g7 l4 l
, will appear in the gray or tan centers. As infections progress, leaves can turn yellow, then brown and finally dry tvb now,tvbnow,bttvb/ E1 }) _6 ]! t: n$ ]' q! V

and dead. Stems can also become infected but www2.tvboxnow.com' F/ ?* Z$ w* _) k

infection of fruit is rare.tvb now,tvbnow,bttvb- ~/ V) D$ \* R; W2 M

How to Prevent and Control Early Blight and 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。7 ]2 D; Q- }1 {' s' ^$ i$ W
www2.tvboxnow.com- m6 T7 }, a. V5 H; ]# K
Septoria Leaf Spot

Follow the 12 easy steps below to enjoy a
www2.tvboxnow.com& N4 X1 s6 }3 v\" W
long season of sweet cherry tomatoes, colorful heirloom tomatoes and richly flavored sauce tomatoes.公仔箱論壇5 U* Y# A; r; l3 g$ |

Weed your garden. Some weeds, www2.tvboxnow.com- t. m2 ~0 N8 @2 F- K( R: a

like nightshade, can host early blight and Septoria leaf spot and spread them to your tomato plants.tvb now,tvbnow,bttvb7 P, ]  e, y$ s

Rotate crop locations. Don’t
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。* Y* z# |) h9 W( ^3 b) [
plant your tomatoes in the same place each year. Early blight and Septoria leaf spot can persist for multiple years in areas " v9 u) }2 O' |$ i$ }  o
: N" X$ R! m( f5 k
where tomatoes were grown.

Give your tomato plants more space for better airflow. At least 2 feet of spacing, more is better., S7 E1 z3 K' C- w% Y  F6 u6 F& Q
Cover the ground beneath your tomato plants with mulch, plastic or landscape fabric. A cover helps prevent the spread of tvb now,tvbnow,bttvb+ F# h$ [6 t" m

fungus from the soil to your
& j8 I) `3 B8 E3 B% k$ V
plants.5 k, k& {1 K! g2 C1 W
$ m) R4 m- N7 u# t* r. {' e
Stake or cage plants to keep them

off the ground. Early blight and Septoria leaf spot can survive on stakes and cages. Use only new or disinfected stakes and
5 o7 ^/ R/ b) R. N" T6 g' |
cages. Remove lower leaves for better airflow. As plants mature, remove lower leaves until there is about 8 to 10 inches of   V' @# y: }* l$ c' u, Z7 k$ X

space above the soil without any leaves. Do not use
( E9 j, E+ w0 Q4 H5 f; g
overhead watering. 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。. i. J4 }' B& g" Y. |
Avoid getting leaves and stems wet as much as possible and avoid watering in a way that may splash soil onto your plants. tvb now,tvbnow,bttvb7 }! W& m% l% r
Consider using a soaker hose or drip tape. Water in the early part of the day. This allows leaves to dry faster. Wet leaves allow 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。2 P; W4 {: U, v# }0 O/ c8 Q/ ^
: A6 B' H9 L: x4 A) {1 H
fungus to grow and spread. Avoid working with plants when they are wet. Fungus can be spread more easily when leaves are www2.tvboxnow.com: q+ C* h3 v, z' s8 J
; e6 g. p3 W0 m- A
wet. Keep your plants happy and healthy. Weak and stressed   i& @. M, M' E5 i4 g$ G( p
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。6 x; H! `7 Q4 h, C, G
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。( U4 F( S% z; ]: C* w" n4 e
公仔箱論壇6 z6 l5 d& |. q/ x# w
Remove and destroy or throw away diseased leaves, both off the 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。, ^# f- ?6 l9 R

plantsplant and any that have fallen onto the ground. This may help stop the spread if caught early
: p3 T9 J" n0 l5 |7 c* W
enough. If a plant is heavily infectedTVBNOW 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。2 X5 P\" U  I1 O% o$ L4 I( L! ]  w

, the entire plant should be removed and destroyed. Do not put infected leaves or plants in a compost pile. Tools used
tvb now,tvbnow,bttvb8 H1 o; E6 ]( x5 K8 \
to remove diseased leaves should be disinfected before being used on a different plant.

Spray plants to prevent and control the
公仔箱論壇  G& S7 m' w\" ^2 T7 o; [, z& b% n% z
spread of Early blight and Septoria leaf spot. Commercial fungicides are available. For organic gardens, try www2.tvboxnow.com- r: p) x: d) R* o, u5 G* y. ?  r9 u
: @6 R% c% Y6 z; _
GreenCure.

Late Blight on Tomato Plants
tvb now,tvbnow,bttvb. O8 f. }& ^0 g
Late blight is another fungus that infects tomato plants. It spreads fast and can quickly kill all tomato tvb now,tvbnow,bttvb3 _# b. Y7 `- l2 i9 ~( Z/ |
公仔箱論壇: f- @  j$ G  Q& ?3 W
plants in a garden. Once a tomato plant

is infected with late blight, the entire plant should be removed and destroyed. Late blight infections first appear as small,
www2.tvboxnow.com( z- f+ I4 X9 }( ]7 Z. w  u9 n3 Z  @
water-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 blight! @; i. S% U; l0 ~. X

can infect all parts of a tomato plant, including the fruit. Most of the methods for preventing early blight and www2.tvboxnow.com! h% q3 K. P, P. [+ M: K
www2.tvboxnow.com0 `( [4 M" H+ T7 R2 x2 J$ G
Septoria leaf spot infections will also help prevent late blight infections.

收藏分享評分

回復引用

訂閱 TOP

返回列表